INFINITI : January 2020

Friday, January 31, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 129

Diagnosis Procedure

1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connections M16, M70. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component

Tests and General Diagnostics/Power Supply and Ground Circuit.

Is the inspection result normal?

YES - GO TO 2.

NO - Repair or replace ground connections.

2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT

1. Disconnect A/F sensor 1 harness connector.

2. Turn ignition switch ON.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 661

Diagnosis Procedure

1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connections M16, M70. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component

Tests and General Diagnostics/Power Supply and Ground Circuit.

Is the inspection result normal?

YES - GO TO 2.

NO - Repair or replace ground connections.

2.CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT-I

1. Disconnect battery current sensor harness connector.

2. Turn ignition switch ON.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 805

Diagnosis Procedure

1.CHECK CAN COMMUNICATION CIRCUIT

With CONSULT-III

1. Turn ignition switch ON and start engine.

2. Select "SELF-DIAG RESULTS" in "TRANSMISSION".

Is the "U1000" indicated?

YES - GO TO LAN section. See: Powertrain Management/Computers and Control Systems/Information Bus/Application and ID/CAN System

Specification Chart.

NO - INSPECTION END

7AT RE7R01A

U1000 CAN COMM CIRCUIT

Description

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle multiplex communication line with

Thursday, January 30, 2020

Disclaimer2017 Infiniti G37 Sedan V6-3.7L Diagnostic and Repair Information # 09-062 Date: 091117

Emissions - EVAP Canister Vent Control Valve Replacement

Classification: EC09-026

Reference: ITB09-062

Date: November 17, 2009

VENT CONTROL VALVE REPLACEMENT

APPLIED VEHICLES:

All Infiniti models using Vent Control Valve P/Ns 14935-AM60A / AM60B

SERVICE INFORMATION

When replacing the EVAP canister vent control valve for any reason:

^ Use the one listed in the PARTS INFORMATION section of this bulletin.

^ For vent control valve replacement procedure, refer to the appropriate section of the Electronic Service Manual (ESM) if needed.

^ When installing the new valve, do not add any lube to its o-ring.

^ Make sure to use the "new style" valve listed in PARTS INFORMATION.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 372

3. Turn ignition switch OFF and wait at least 10 seconds.

- GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 5 seconds.

2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES - Go to See: P Code Charts/P0182.

NO - INSPECTION END

Wiring Diagram

Diagnosis Procedure

1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connections M16, M70. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component

Tests and General Diagnostics/Power Supply and Ground Circuit.

Is the inspection result normal?

YES - GO TO 2.

NO - Repair or replace ground connections.

2.CHECK DTC WITH "UNIFIED METER AND A/C AMP."

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 807

Diagnosis Procedure

Go to See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Initial Inspection and Diagnostic

Overview/CAN Fundamental/Trouble Diagnosis Flow Chart.

Without Mobile Entertainment System

U1000 CAN COMM CIRCUIT

Description

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle multiplex communication line with

high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control

unit shares information and links with other control units during operation (not independently). In CAN communication, control units are

connected with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each control unit

transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart. See: Powertrain Management/Computers and Control Systems/Information Bus/Application and ID/CAN

Communication Signal Chart.

Wednesday, January 29, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 660

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.

- GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and wait at least 10 seconds.

2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES - Go to See: P Code Charts/P1553.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 682

4. Check the voltage between ASCD brake switch harness connector and ground.

Is the inspection result normal?

YES - GO TO 5.

NO - GO TO 4.

4.DETECT MALFUNCTIONING PART

Check the following.

- Fuse block (J/B) connector E102

- 10 A fuse (No. 12)

- Harness for open or short between ASCD brake switch and fuse

- Repair open circuit, short to ground or short to power in harness or connectors.

5.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between ASCD brake switch harness connector and ECM harness connector.

4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES - GO TO 7.

NO - GO TO 6.

6.DETECT MALFUNCTIONING PART

Check the following.

- Harness connectors E108, M15

- Harness for open or short between ECM and ASCD brake switch

- Repair open circuit, short to ground or short to power in harness or connectors.

7.CHECK ASCD BRAKE SWITCH

See: P Code Charts/P1572/ASCD Brake Switch

Is the inspection result normal?

YES - GO TO 13.

NO - Replace ASCD brake switch.

8.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect stop lamp switch harness connector.

3. Check the voltage between stop lamp switch harness connector and ground.

Tuesday, January 28, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 166

1. Remove intake valve timing control solenoid valve.

2. Apply 12 V between intake valve timing control solenoid valve terminals 1 and 2, and then interrupt it. Check that the plunger moves as

shown in the figure.

CAUTION:

Never apply 12 V continuously for 5 seconds or more.

Doing so may result in damage to the coil in intake valve timing control solenoid valve.

NOTE:

Always replace O-ring when intake valve timing control solenoid valve is removed.

Is the inspection result normal?

YES - INSPECTION END

NO - Replace malfunctioning intake valve timing control solenoid valve.

P0078

P0078, P0084 EVT CONTROL MAGNET RETARDER

Description

Exhaust valve timing control magnet retarder (1) controls the shut/open timing of the exhaust valve by ON/OFF pulse duty signals sent from the

ECM.

The longer pulse width retards valve timing.

The shorter pulse width advances valve timing.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

- GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and let it idle for 5 seconds.

2. Check 1st trip DTC.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 167

Is 1st trip DTC detected?

YES - Go to See: P Code Charts/P0078.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 767

ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.

DTC Logic

DTC DETECTION LOGIC

NOTE:

If DTC P0222, P0223, P2132 or P2133 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. See: P Code

Charts/P0643.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

- GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and let it idle for 1 second.

2. Check DTC.

Is DTC detected?

YES - Go to See: P Code Charts/P0222.

Monday, January 27, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 519

Is the inspection result normal?

YES - GO TO 3.

NO - Repair or replace harness connector.

3.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-I

1. Turn ignition switch ON.

2. Check the voltage between EVAP control system pressure sensor harness connector and ground.

Is the inspection result normal?

YES - GO TO 10.

NO - GO TO 4.

4.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-II

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

Is the inspection result normal?

YES - GO TO 6.

NO - GO TO 5.

5.DETECT MALFUNCTIONING PART

Check the following.

- Harness connectors B171, B469

- Harness connectors B418, M66

- Harness for open between ECM and EVAP control system pressure sensor

- Repair open circuit.

6.CHECK SENSOR POWER SUPPLY CIRCUIT

Check harness for short to power and short to ground, between the following terminals.

Is the inspection result normal?

YES - GO TO 7.

NO - Repair short to ground or short to power in harness or connectors.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 264

Perform See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic

Overview/Trouble Diagnosis For Intermittent Incident/Description.

Is the inspection result normal?

YES - GO TO 6.

NO - Repair or replace malfunctioning part.

6.REPLACE A/F SENSOR 1

Replace malfunctioning A/F sensor 1.

CAUTION:

- Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor;

use a new one.

- Before installing new A/F sensor, clean exhaust system threads using Oxygen Sensor Thread

Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant

(commercial service tool).

- INSPECTION END

P0132

P0132, P0152 A/F SENSOR 1

Description

The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor. The sensor element of the A/F sensor 1 is composed an electrode layer,

which transports ions. It has a heater in the element.

The sensor is capable of precise measurement = 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a

clear, continuous signal throughout a wide range.

The exhaust gas components diffuse through the diffusion layer at the sensor cell. An electrode layer is applied voltage, and this current relative

oxygen density in lean. Also this current relative hydrocarbon density in rich.

Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this electrode layer of current. In addition, a heater is integrated in the sensor to

ensure the required operating temperature of approximately 800锟紺 (1,472锟紽).

DTC Logic

DTC DETECTION LOGIC

To judge the malfunction, the diagnosis checks that the air fuel ratio (A/F) signal computed by ECM from the A/F sensor 1 signal is not

inordinately high.

DTC CONFIRMATION PROCEDURE

Sunday, January 26, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 219

4.CHECK MASS AIR FLOW (MAF) SENSOR POWER SUPPLY CIRCUIT

1. Disconnect MAF sensor harness connector.

2. Turn ignition switch ON.

3. Check the voltage between MAF sensor harness connector and ground.

Is the inspection result normal?

YES - GO TO 6.

NO - GO TO 5.

5.DETECT MALFUNCTIONING PART

Check the following.

- Harness connectors E108, M15

- Harness connectors F102, M72

- Harness for open or short between MAF sensor and ECM

- Harness for open or short between MAF sensor and IPDM E/R

- Repair open circuit, short to ground or short to power in harness or connectors.

6.CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between MAF sensor harness connector and ECM harness connector.

4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES - GO TO 7.

NO - Repair open circuit, short to ground or short to power in harness or connectors.

7.CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between MAF sensor harness connector and ECM harness connector.

2. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES - GO TO 8.

NO - Repair open circuit, short to ground or short to power in harness or connectors.

8.CHECK MAF SENSOR

See: P Code Charts/P0102.

Is the inspection result normal?

YES - GO TO 9.

NO - Replace malfunctioning mass air flow sensor.

9.CHECK INTERMITTENT INCIDENT

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 226

Is the inspection result normal?

YES - INSPECTION END

NO - Replace mass air flow sensor (with intake air temperature sensor) (bank 1).

P0113

P0112, P0113 IAT SENSOR

Description

The intake air temperature sensor is built-into the mass air flow sensor (1). The sensor detects intake air temperature and transmits a signal to the

ECM.

The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in

response to the rise in temperature.

NOTE:

ECM uses only the intake air temperature sensor (bank 1) for engine control and self-diagnosis. It does not use the intake air temperature sensor

(bank 2).

[Reference data]

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 355

Diagnosis Procedure

1.CHECK EXHAUST GAS LEAK

1. Start engine and run it at idle.

2. Listen for an exhaust gas leak before three way catalyst 1.

Is exhaust gas leak detected?

YES - Repair or replace malfunctioning part.

NO - GO TO 2.

2.CHECK FOR INTAKE AIR LEAK

Listen for an intake air leak after the mass air flow sensor.

Is intake air leak detected?

Saturday, January 25, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 78

2. Disconnect Intelligent Key unit and A/T shift selector connector.

3. Check continuity between Intelligent Key unit connector and A/T shift selector connector.

4. Check continuity between Intelligent Key unit connector and ground.

OK or NG

OK - GO TO 3.

NG - Repair or replace harness.

3.CHECK A/T SHIFT SELECTOR

Check A/T shift selector.

OK or NG

OK - Check the condition of harness and connector. If it is

OK, check the self-diagnosis results using CONSULT-III again.

NG - Replace A/T shift selector.

2017 Infiniti G37 Sedan V6-3.7L Diagnostic and Repair Information # 10-029 Date: 100507

Computers/Control - CAN Code, Diagnostic Tips/Guidelines

Classification: EL10-018

Reference: ITB10-029

Date: May 7, 2010

CAN COMMUNICATION CODES - DIAGNOSTIC TIPS & GUIDELINES

APPLIED VEHICLES: All 2005 - 2010 Infiniti vehicles

SERVICE INFORMATION

Related to communication codes U1000, U1001, U1002, U1010:

^ Always diagnose the communication codes first.

^ When a module reports a U1000 code, it is typically operating normally; however, there is a communication error external to that module on the

CAN network.

^ U1000 indicates an error. V-CAN diagram or CAN Diag Support Monitor provides data to determine the location of the error.

Step 1

Complete the CAN diagnosis with CONSULT-III (C-III).

^ Open ASIST first and then open C-III using the Consult Utilities icon. This step will help identify the CAN type on many vehicles using the SIS

function.

^ Ensure the correct CAN type is selected. Selecting the incorrect CAN type will lead to mis-diagnosis.

Step 2

View the V-CAN screen or print all CAN Diag Support Monitors (Shown below).

^ The V-CAN diagram screen is a snap shot only. It must be refreshed after any changes.

Step 3

Read the V-CAN diagram using the key provided OR reference the appropriate Electronic Service Manual (ESM) to analyze the CAN Diag Support

Monitor data. Determine the incident according to the display.

Step 4

If V-CAN diagnosis is not available or inconclusive, refer to the basic CAN diagnostic guidelines shown on pages 5-12. These represent electrical

values of the CAN system measured at the Data Link Connector or connectors at non-termination units.

To properly perform these basic checks:

^ The battery should be disconnected for resistance checks.

^ The ignition should be off.

Tips if a control module is the suspected root cause:

^ Improper module configuration or incorrect part numbers may set CAN DTCs.

^ Low battery voltage may set CAN DTCs.

Page 257

^ Always confirm the power, ground, and CAN resistance at a suspect module before replacing the module. Resistance should be close to 60 ohms

at the module (measured with the battery disconnected). The resistance at terminating modules should be close to 120 ohms. Examples of

terminating modules include IPDM, ECM, or BCM. Reference the appropriate ESM to determine the terminating modules.

DEFINITION OF CAN CODES

Page 258

V-CAN DIAGRAM SCREEN/CAN DIAG SUPPORT MONITOR - STEP 3 ILLUSTRATION

Page 259

Battery Is Possibly Connected

Page 260

Normal Resistance - CAN Harness

Page 261

Normal Resistence - CAN High to Ground

Page 262

Normal Resistence - CAN Low to Ground

Page 263

Open CAN Harness

Page 264

Short - CAN High to CAN Low

Page 265

Normal Voltage - CAN High

Page 266

Normal Voltage - CAN Low

Friday, January 24, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 541

NOTE:

- If DTC P0462 or P0463 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC

UXXXX.

- If DTC P0462 or P0463 is displayed with DTC P0607, first perform the trouble diagnosis for DTC

P0607. See: P Code Charts/P0607.

This diagnosis indicates the former, to detect open or short circuit malfunction.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 11 V at ignition switch ON.

- GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 5 seconds.

2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES - Go to See: P Code Charts/P0462.

NO - INSPECTION END

Diagnosis Procedure

1.CHECK DTC WITH "UNIFIED METER AND A/C AMP."

Is the inspection result normal?

YES - GO TO 2.

NO - Go to See: Instrument Panel, Gauges and Warning Indicators/Testing and Inspection/Component Tests and General

Diagnostics/Combination Meter/Fuel Level Sensor Signal Inspection.

2.CHECK INTERMITTENT INCIDENT

See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Trouble

Diagnosis For Intermittent Incident/Description.

- INSPECTION END

P0500

P0500 VSS

Description

The vehicle speed signal is sent to the "unified meter and A/C amp." from the "ABS actuator and electric unit

(control unit)" by CAN communication line. The "unified meter and A/C amp." then sends a signal to the ECM by CAN communication line.

DTC Logic

DTC DETECTION LOGIC

NOTE:

- If DTC P0500 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.

- If DTC P0500 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. See: P Code Charts/P0607.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 578

performing the next test.

- GO TO 2.

2.CHECK ATF TEMPERATURE

With CONSULT-III

1. Start the engine.

2. Select "ATF TEMP 1" in "Data Monitor" in "TRANSMISSION".

3. Check ATF temperature is in the following range.

ATF TEMP 1: 20锟斤拷C (68锟斤拷F) - 140锟斤拷C (284锟斤拷F)

With GST

1. Start the engine.

2. Drive vehicle for approximately 5 minutes in urban areas.

Is ATF temperature within specified range?

YES - GO TO 3.

NO - Drive vehicle to warm ATF or stop engine to cool ATF.

3.CHECK SYMPTOM (PART 1)

With CONSULT-III

1. Select "1ST GR FNCTN P0731" in "DTC & SRT confirmation" in "TRANSMISSION".

2. Drive vehicle with manual mode and maintain the following conditions.

GEAR: 1

ACCELE POSI: 0.7/8 or more

VEHICLE SPEED: 10 km/h (7 MPH) or more

3. Keep the current driving status for 2 seconds or more if CONSULT-III screen changes from "OUT OF CONDITION" to "TESTING".

CAUTION:

When "TESTING" is not indicated on CONSULT-III for a long time, check "Self Diagnostic Results" in "TRANSMISSION". When a

DTC other than "P0731" is detected, check the DTC. See: Diagnostic Trouble Code Descriptions/DTC Index/TCM.

With GST

1. Drive vehicle and maintain the following conditions for 2 seconds or more.

Selector lever: "M" position

Gear position: 1st

Accelerator pedal opening: 0.7/8 or more

Vehicle speed: 10 km/h (7 MPH) or more

2. Check DTC.

Is "OUT OF CONDITION", "STOP VEHICLE" or "COMPLETED RESULT NG" displayed? / Is "P0731" detected?

YES-1 - "OUT OF CONDITION": Perform "Step 3" again.

YES-2 - "STOP VEHICLE": GO TO 4.

YES-3 - "COMPLETED RESULT NG": Go to See: P Code Charts/P0731/7AT RE7R01A.

YES-4 - "P0731" is detected: Go to See: P Code Charts/P0731/7AT RE7R01A.

NO - Check intermittent incident. See: Testing and Inspection/Initial Inspection and Diagnostic Overview/How to Perform Efficient Diagnosis

For an Electrical Incident.

4.CHECK SYMPTOM (PART 2)

With CONSULT-III

1. Stop vehicle.

2. Drive vehicle in "D" position allowing it to shift from 1GR to 7GR and check shift timing and shift shock.

- INSPECTION END

Diagnosis Procedure

1.CHECK INTERMITTENT INCIDENT

See: Testing and Inspection/Initial Inspection and Diagnostic Overview/How to Perform Efficient Diagnosis For an Electrical Incident.

Is the inspection result normal?

YES - Replace A/T assembly. See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Removal and

Replacement/7AT RE7R01A/Transmission Assembly/Exploded View.

NO - Repair or replace damaged parts.

5AT RE5R05A

P0732 2GR INCORRECT RATIO

Description

This malfunction is detected when the A/T does not shift into 2GR position as instructed by TCM. This is not only caused by electrical

malfunction (circuits open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve operation, etc.

On Board Diagnosis Logic

- This is an OBD-II self-diagnostic item.

- Diagnostic trouble code "P0732" with CONSULT-III or 19th judgment flicker without CONSULT-III is detected when TCM detects any

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 52

3. Check continuity between AFS control unit harness connector

(A) and front combination lamp LH harness connector (B).

OK or NG

OK - Replace front combination lamp LH (swivel position sensor malfunction). See: Lighting and Horns/Testing and Inspection/Symptom

Related Diagnostic Procedures/AFS Off Indicator Does Not Operate See: Sensors and Switches/Sensors and Switches - Steering and

Suspension/Sensors and Switches - Steering/Steering Angle Sensor/Service and Repair/Active AFS See: Lighting and Horns/Headlamp/Service

and Repair/Active AFS See: Lighting and Horns/Headlamp/Headlamp Alignment Control Module/Service and Repair, "Removal and Instal-

lation of Front Combination Lamp".

NG - Repair harness or connector.

8.CHECK DIAGNOSIS RESULT

Select "ADAPTIVE LIGHT" on CONSULT-III. Select "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.

Is DTC B2521 ECU CIRC detected?

YES - See: B Code Charts/B2521.

NO - GO TO 9.

9.CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect front combination lamp LH connector.

3. Turn ignition switch ON.

4. Check voltage between AFS control unit harness connector and ground.

OK or NG

OK - GO TO 10.

NG - GO TO 11.

10.CHECK SWIVEL POSITION SENSOR SIGNAL CIRCUIT (SHORT CIRCUIT)

1. Turn ignition switch OFF.

2. Disconnect AFS control unit connector.

Thursday, January 23, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 725

Diagnosis Procedure

1.CHECK MANUAL MODE SWITCH CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect A/T shift selector connector.

3. Turn ignition switch ON.

4. Check voltage between A/T shift selector vehicle side harness connector terminals.

Is the inspection result normal?

YES - GO TO 2.

NO - GO TO 4.

2.CHECK MANUAL MODE SWITCH

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 537

2. Remove fuel filler cap.

3. Wipe clean valve housing.

4. Install fuel filler cap adapter (commercial service tool) to fuel filler cap.

5. Check valve opening pressure and vacuum.

Pressure: 15.3 - 20.0 kPa (0.156 - 0.204 kg/cm2, 2.22 - 2.90 psi)

Vacuum: -6.0 to -3.3 kPa (-0.061 to -0.034 kg/cm2, -0.87 to -0.48 psi)

Is the inspection result normal?

YES - INSPECTION END

NO - GO TO 2.

2.REPLACE FUEL FILLER CAP

Replace fuel filler cap.

CAUTION:

Use only a genuine fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the MIL may illuminate.

- INSPECTION END

P0460

P0460 FUEL LEVEL SENSOR

Description

The fuel level sensor is mounted in the fuel level sensor unit.

The sensor detects a fuel level in the fuel tank and transmits a signal to the "unified meter and A/C amp.". The "unified meter and A/C amp."

sends the fuel level sensor signal to the ECM through the CAN communication line.

It consists of two parts, one is mechanical float and the other is variable resistor. Fuel level sensor output volt- age changes depending on the

movement of the fuel mechanical float.

DTC Logic

DTC DETECTION LOGIC

NOTE:

- If DTC P0460 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.

- If DTC P0460 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. See: P Code Charts/P0607.

When the vehicle is parked, the fuel level in the fuel tank is naturally stable. It means that output signal of the fuel level sensor does not change. If

ECM senses sloshing signal from the sensor, fuel level sensor malfunction is detected.

Wednesday, January 22, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 631

Diagnosis Procedure

1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connections M16, M70. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component

Tests and General Diagnostics/Power Supply and Ground Circuit.

Is the inspection result normal?

YES - GO TO 2.

NO - Repair or replace ground connections.

2.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT

1. Disconnect electric throttle control actuator harness connector.

2. Disconnect ECM harness connector.

3. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 234

4. Check resistance between engine coolant temperature sensor terminals by heating with hot water as shown in the figure.

Is the inspection result normal?

YES - INSPECTION END

NO - Replace engine coolant temperature sensor.

P0118

P0117, P0118 ECT SENSOR

Description

The engine coolant temperature sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the ECM. The

modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in

temperature. The electrical resistance of the thermistor decreases as temperature increases.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 90

OK or NG

OK - 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.

2. Erase DTC and perform ICC system running test.

Then perform self-diagnosis of ICC system again.

NG - 1. Repair or replace ICC sensor integrated unit ground harness.

2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

C1A03

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

C1A03 VHCL SPEED SE CIRC

1.PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS

1. Perform self-diagnosis.

2. Check if "C1A04: ABS/TCS/VDC CIRC" (DTC 4) or "U1000: CAN COMM CIRCUIT" (DTC 100) other than "C1A03: VHCL SPEED SE

CIRC" (DTC 3) is indicated in self-diagnosis item in the display.

Is any indicated?

YES - 1. Repair or replace applicable item. See: Diagnostic Trouble Code Descriptions/Cruise Control System.

2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NO - GO TO 2.

2.CHECK A/T VEHICLE SPEED SENSOR

With CONSULT-III

With "ICC" "Data Monitor", check if "VHCL SPD AT" operates normally.

OK or NG

OK - 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.

2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NG - 1. Perform "TRANSMISSION" self-diagnosis. See: Powertrain Management/Transmission Control Systems/Testing and Inspection/Scan

Tool Testing and Procedures/5AT RE5R05A/Trouble Diagnosis/CONSULT-III Function (Transmission) (for 5AT models) or See: Diagnostic

Trouble Code Descriptions/DTC Index/TCM (for 7AT models).

2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.

Then perform self-diagnosis of ICC system again.

C1A04

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

C1A04 ABS/TCS/VDC CIRC

1.PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS

1. Perform self-diagnosis.

2. Check if "U1000: CAN COMM CIRCUIT" (DTC100) other than "C1A04: ABS/TCS/VDC CIRC" (DTC 4) is indicated in self-diagnosis item

in the display.

Is it indicated?

YES - 1. CAN communication inspection. See: U Code Charts/U1000/ACS/ICC.

2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.

Then perform self-diagnosis of ICC system again.

NO - GO TO 2.

2.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS

With CONSULT-III

1. Perform "ABS" self-diagnosis. See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Testing and Inspection/Scan

Tool Testing and Procedures/Trouble Diagnosis.

2. Check if malfunction is indicated.

Is malfunction indicated?

YES - 1. Repair or replace applicable item.

2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

NO - 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.

2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

C1A05

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

C1A05 BRAKE SW/STOP L SW

1.PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS

Tuesday, January 21, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 36

3. Check continuity between Intelligent Key unit connector and ground.

OK or NG

OK - Check the condition of harness and connector.

NG - Repair or replace harness.

3.CHECK STEERING LOCK UNIT SIGNAL

1. Connect steering lock unit connector.

2. Check voltage between steering lock unit connector and ground.

OK or NG

OK - Replace steering lock unit.

NG - GO TO 4.

4.CHECK HARNESS CONTINUITY 2

1. Turn ignition switch OFF.

2. Disconnect Intelligent Key unit and steering lock unit connector.

3. Check continuity between Intelligent Key unit connector and steering lock unit connector.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 488

4. Turn ignition switch OFF and wait at least 10 seconds.

5. Turn ignition switch ON.

6. Turn ignition switch OFF and wait at least 10 seconds.

7. Turn ignition switch ON.

8. Check 1st trip DTC.

Is 1st trip DTC displayed?

YES-1 - P0441: Go to See: P Code Charts/P0441.

YES-2 - P0442: Go to See: P Code Charts/P0442.

NO - INSPECTION END

Diagnosis Procedure

1.CHECK FUEL FILLER CAP DESIGN

1. Turn ignition switch OFF.

2. Check for genuine NISSAN fuel filler cap design.

Is the inspection result normal?

YES - GO TO 2.

NO - Replace with genuine NISSAN fuel filler cap.

2.CHECK FUEL FILLER CAP INSTALLATION

Check that the cap is tightened properly by rotating the cap clockwise.

Is the inspection result normal?

YES - GO TO 3.

NO - Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Retighten until ratcheting sound is heard.

3.CHECK FUEL FILLER CAP FUNCTION

Check for air releasing sound while opening the fuel filler cap.

Is the inspection result normal?

YES - GO TO 5.

NO - GO TO 4.

4.CHECK FUEL TANK VACUUM RELIEF VALVE

See: P Code Charts/P0442.

Is the inspection result normal?

YES - GO TO 5.

NO - Replace fuel filler cap with a genuine one.

5.CHECK FOR EVAP LEAK

See: Powertrain Management/Emission Control Systems/Evaporative Emissions System/Testing and Inspection.

Is there any leak in EVAP line?

YES - Repair or replace malfunctioning part.

NO - GO TO 6.

6.CHECK EVAP CANISTER VENT CONTROL VALVE

Check the following.

- EVAP canister vent control valve is installed properly. See: Powertrain Management/Emission Control Systems/Evaporative Emissions

System/Evaporative Emission Control Canister/Service and Repair/Removal and Replacement/Removal and Installation.

- EVAP canister vent control valve. See: P Code Charts/P0447.

Is the inspection result normal?

YES - GO TO 7.

NO - Repair or replace EVAP canister vent control valve and O-ring.

7.CHECK IF EVAP CANISTER IS SATURATED WITH WATER

1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached.

Monday, January 20, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 343

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 533

Will CONSULT-III be used?

YES - GO TO 2.

NO - GO TO 4.

2.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

NOTE:

After repair, check that the hoses and clips are installed properly.

TESTING CONDITION:

- Open engine hood before conducting the following procedure.

- If any of following conditions are met just before the DTC confirmation procedure, leave the vehicle for more than 1 hour.

- Fuel filler cap is removed.

- Fuel is refilled or drained.

- EVAP component part/parts is/are removed.

- Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.

- Check that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly.

- GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT-III

1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-III.

2. Check that the following conditions are met.

FUEL LEVEL SE: 0.25 - 1.4 V

COOLAN TEMP/S: 0 - 32锟紺 (32 - 90锟紽)

FUEL T/TMP SE: 0 - 35锟紺 (32 - 95锟紽)

INT A/TEMP SE: More than 0锟紺 (32锟紽)

If NG, turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle), or refill/drain fuel until the output voltage of the "FUEL

LEVEL SE" meets within the range above and leave the vehicle for more than 1 hour. Then start from step 1.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON.

5. Select "EVP V/S LEAK P0456/P1456" of "EVAPORATIVE SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT-III.

Follow the instructions displayed.

NOTE:

If the engine speed cannot be maintained within the range displayed on CONSULT-III screen, go to EC-22, "BASIC INSPECTION :

Special Repair Requirement".

Which is displayed on CONSULT-III screen?

OK - INSPECTION END

NG - Go to See: P Code Charts/P0456.

4.PERFORM COMPONENT FUNCTION CHECK

With GST

Perform component function check. See: P Code Charts/P0456.

NOTE:

Use component function check to check the overall function of the EVAP very small leak function. During this check, a 1st trip DTC might not be

confirmed.

Is the inspection result normal?

YES - INSPECTION END

NO - Go to See: P Code Charts/P0456.

Component Function Check

1.PERFORM COMPONENT FUNCTION CHECK

With GST

CAUTION:

- Never use compressed air, doing so may damage the EVAP system.

- Never start engine.

- Never exceed 4.12 kPa (0.042 kg/cm2, 0.6 psi).

1. Attach the EVAP service port adapter securely to the EVAP service port (commercial service tool).

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 818

Diagnosis Procedure

1.PERFORM THE SELF-DIAGNOSIS

1. Delete the self-diagnosis results. Turn ignition switch OFF.

2. Turn ignition switch ON. Perform the self-diagnosis again.

3. Check that the DTC is detected again.

Is any DTC detected?

YES - Replace AV control unit.

NO - The intermittent malfunction caused by strong radio interference can be detected.

With Mobile Entertainment System

U1205 GPS

Description

Replace the AV control unit if this DTC is displayed. See: Accessories and Optional Equipment/Radio, Stereo, and Compact

Disc/Radio/Stereo/Service and Repair/AV Control Unit/Exploded View/With Mobile Entertainment System.

DTC Logic

Diagnosis Procedure

1.PERFORM THE SELF-DIAGNOSIS

1. Delete the self-diagnosis results. Turn ignition switch OFF.

2. Turn ignition switch ON. Perform the self-diagnosis again.

3. Check that the DTC is detected again.

Is any DTC detected?

YES - Replace AV control unit.

NO - The intermittent malfunction caused by strong radio interference can be detected.

Without Mobile Entertainment System

U1206 GPS

Description

Replace the AV control unit if this DTC is displayed. See: Accessories and Optional Equipment/Radio, Stereo, and Compact

Disc/Radio/Stereo/Service and Repair/AV Control Unit/Exploded View/Without Mobile Entertainment System.

Sunday, January 19, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 717

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Fully depress the brake pedal for at least 5 seconds.

3. Erase the DTC.

4. Check 1st trip DTC.

Is 1st trip DTC detected?

YES - Go to See: P Code Charts/P1805.

NO - INSPECTION END

Wiring Diagram

Diagnosis Procedure

1.CHECK STOP LAMP SWITCH CIRCUIT

1. Turn ignition switch OFF.

2. Check the stop lamp illumination under the following conditions.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 19

DTC INDEX

C1900-C1913

DTC Index C1900-C1913

C1914-C1929

DTC INDEX

C1914-C1929

DTC Index C1914-C1929

U1000-U1010

DTC INDEX

U1000-U1010

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 145

3. Check the voltage between A/F sensor 1 harness connector and ground.

Is the inspection result normal?

YES - GO TO 4.

NO - GO TO 3.

3.DETECT MALFUNCTIONING PART

Check the following.

- Harness connectors E12, F3

- IPDM E/R harness connector E7

- 15 A fuse (No. 85)

- Harness for open or short between A/F sensor 1 and fuse

- Repair or replace harness or connectors.

4.CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.

4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES - GO TO 5.

NO - Repair open circuit, short to ground or short to power in harness or connectors.

5.CHECK A/F SENSOR 1 HEATER

See: P Code Charts/P0031.

Is the inspection result normal?

YES - GO TO 7.

NO - GO TO 6.

6.REPLACE A/F SENSOR 1

Replace malfunctioning A/F sensor 1.

CAUTION:

- Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor;

use a new one.

- Before installing new A/F sensor, clean exhaust system threads using Oxygen Sensor Thread

Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant

(commercial service tool).

- INSPECTION END

7.CHECK INTERMITTENT INCIDENT

Perform See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic

Overview/Trouble Diagnosis For Intermittent Incident/Description.

- Repair or replace malfunctioning part.

Component Inspection

1.CHECK AIR FUEL RATIO (A/F) SENSOR 1

1. Turn ignition switch OFF.

2. Disconnect A/F sensor 1 harness connector.

Saturday, January 18, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 423

NOTE:

Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following procedure.

3. Start engine.

4. After engine stalls, crank it 2 or 3 times to release all fuel pressure.

5. Turn ignition switch OFF.

6. Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.

7. Remove ignition coil and spark plug of the cylinder to be checked.

8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.

9. Connect spark plug and harness connector to ignition coil.

10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -0.66 in) between the edge of the spark plug and grounded metal portion as

shown in the figure.

11. Crank engine for approximately 3 seconds, and check whether spark is generated between the spark plug and the grounded metal portion.

Spark should be generated.

CAUTION:

- Never place to the spark plug and the ignition coil within

50 cm (19.7 in). Be careful not to get an electrical shock while checking, because the electrical discharge voltage becomes 20 kV or more.

- It might damage the ignition coil if the gap of more than 17 mm (0.66 in) is made.

NOTE:

When the gap is less than 13 mm (0.52 in), a spark might be generated even if the coil is malfunctioning.

Is the inspection result normal?

YES - GO TO 9.

NO - GO TO 6.

6.CHECK FUNCTION OF IGNITION COIL-II

1. Turn ignition switch OFF.

2. Disconnect spark plug and connect a known-good spark plug.

3. Crank engine for approximately 3 seconds, and recheck whether spark is generated between the spark plug and the grounded metal portion.

Spark should be generated.

Is the inspection result normal?

YES - GO TO 7.

NO - Check ignition coil, power transistor and their circuits. See: Powertrain Management/Computers and Control Systems/Testing and

Inspection/Component Tests and General Diagnostics/Ignition Signal/Diagnosis Procedure.

7.CHECK SPARK PLUG

Check the initial spark plug for fouling, etc.

Is the inspection result normal?

YES - Replace spark plug(s) with standard type one(s). For spark plug type, See: Maintenance.

NO - Repair or clean spark plug. Then GO TO 8.

8.CHECK FUNCTION OF IGNITION COIL-III

1. Reconnect the initial spark plugs.

2. Crank engine for approximately 3 seconds, and recheck whether spark is generated between the spark plug and the grounded portion.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 307

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 10.5 V at idle.

- GO TO 2.

2.CHECK A/F SENSOR FUNCTION

With CONSULT-III

1. Start engine and warm it up to normal operating temperature.

2. Select "A/F SEN1 (B1)" or "A/F SEN1 (B2)" in "DATA MONITOR" mode with CONSULT-III.

3. Check "A/F SEN1 (B1)" or "A/F SEN1 (B2)" indication.

With GST

Follow the procedure "With CONSULT-III" above.

Is the indication constantly approx. 0 V?

YES - Go to See: P Code Charts/P0131.

NO - GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT-III

1. Turn ignition switch OFF, wait at least 10 seconds and then restart engine.

2. Drive and accelerate vehicle to more than 40 km/h (25 MPH) within 20 seconds after restarting engine.

CAUTION:

Always drive vehicle at a safe speed.

3. Maintain the following conditions for approximately 20 consecutive seconds.

4. Check 1st trip DTC.

With GST

Follow the procedure "With CONSULT-III" above.

Is 1st trip DTC detected?

YES - Go to See: P Code Charts/P0131.

Friday, January 17, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 482

3. Disconnect all ignition coil harness connectors.

4. Reconnect all fuel injector harness connectors disconnected.

5. Turn ignition switch ON.

Does fuel drip from fuel injector?

YES - Replace the fuel injector(s) from which fuel is dripping.

NO - GO TO 11.

11.CHECK INTERMITTENT INCIDENT

See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Trouble

Diagnosis For Intermittent Incident/Description.

Is the inspection result normal?

YES - Replace three way catalyst assembly.

NO - Repair or replace harness or connector.

P0441

P0441 EVAP CONTROL SYSTEM

DTC Logic

DTC DETECTION LOGIC

NOTE:

If DTC P0441 is displayed with other DTC such as P2122, P2123, P2127, P2128 or P2138, first perform trouble diagnosis for other DTC.

In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions.

Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP canister purge volume control

solenoid valve is open to admit purge flow. Purge flow exposes the EVAP control system pressure sensor to intake manifold vacuum.

Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow are adequate. If not, a malfunction

is determined.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

Will CONSULT-III be used?

YES - GO TO 2.

NO - GO TO 5.

2.PERFORM DTC CONFIRMATION PROCEDURE-I

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 40

1. Check continuity between combination meter harness connector

(A) and unified meter and A/C amp. harness connector (B).

2. Check continuity between combination meter harness connector

(A) and ground.

OK or NG

OK - GO TO 4.

NG - Repair harness or connector.

4.CHECK COMBINATION METER OUTPUT VOLTAGE (TX: UNIFIED METER AND A/C AMP.)

1. Connect combination meter connector.

2. Turn ignition switch ON.

3. Check voltage between combination meter harness connector and ground.

OK or NG

OK - GO TO 5.

NG - Replace combination meter.

5.CHECK COMMUNICATION SIGNAL (TX: UNIFIED METER AND A/C AMP.)

1. Turn ignition switch OFF.

2. Connect unified meter and A/C amp. connector.

3. Turn ignition switch ON.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 604

Diagnosis Procedure

1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connections M16, M70. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component

Tests and General Diagnostics/Power Supply and Ground Circuit.

Is the inspection result normal?

YES - GO TO 2.

NO - Repair or replace ground connections.

2.CHECK EXHAUST VALVE TIMING (EVT) CONTROL POSITION SENSOR POWER SUPPLY CIRCUIT-I

1. Disconnect EVT control position sensor harness connector.

2. Turn ignition switch ON.

Thursday, January 16, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 273

Is exhaust gas leak detected?

YES - Repair or replace malfunctioning part.

NO - GO TO 4.

4.CHECK FOR INTAKE AIR LEAK

Listen for an intake air leak after the mass air flow sensor.

Is intake air leak detected?

YES - Repair or replace malfunctioning part.

NO - GO TO 5.

5.CLEAR THE MIXTURE RATIO SELF-LEARNING VALUE

1. Clear the mixture ratio self-learning value. See: Powertrain Management/Computers and Control Systems/Testing and

Inspection/Programming and Relearning/Mixture Ratio Self - Learning Value Clear/Special Repair Requirement.

2. Run engine for at least 10 minutes at idle speed.

Is the 1st trip DTC P0171, P172, P0174 or P0175 detected? Is it difficult to start engine?

YES - Perform trouble diagnosis for DTC P0171, P0174 or P0172, P0175. See: P Code Charts/P0171 or See: P Code Charts/P0172.

NO - GO TO 6.

6.CHECK A/F SENSOR 1 POWER SUPPLY CIRCUIT

1. Disconnect A/F sensor 1 harness connector.

2. Turn ignition switch ON.

3. Check the voltage between A/F sensor 1 harness connector and ground.

Is the inspection result normal?

YES - GO TO 8.

NO - GO TO 7.

7.DETECT MALFUNCTIONING PART

Check the following.

- Harness connectors E12, F3

- IPDM E/R harness connector E7

- 15 A fuse (No. 85)

- Harness for open or short between A/F sensor 1 and fuse

- Repair or replace harness or connectors.

8.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 396

4. Turn ignition switch ON.

5. Set selector lever position to D.

6. Check the voltage between ECM harness connector terminals under the following conditions.

Is the inspection result normal?

YES - INSPECTION END

NO - GO TO 2.

2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace malfunctioning electric throttle control actuator.

2. Go to See: P Code Charts/P0222.

- INSPECTION END

Special Repair Requirement

1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Programming and Relearning/Throttle Valve Closed

Position Learning/Special Repair Requirement

- GO TO 2.

2.PERFORM IDLE AIR VOLUME LEARNING

See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Idle Speed/Testing and Inspection/Programming and

Relearning/Special Repair Requirement

- END

P0227

P0122, P0123, P0227, P0228 TP SENSOR

Description

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle position sensor responds to the throttle

valve movement.

The throttle position sensor has two sensors. These sensors are a kind of potentiometer which transform the throttle valve position into output

voltage, and emit the voltage signal to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and controls

the throttle valve opening angle in response to driving conditions via the throttle control motor.

Wednesday, January 15, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 764

Diagnosis Procedure

1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connections M16, M70. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component

Tests and General Diagnostics/Power Supply and Ground Circuit.

Is the inspection result normal?

YES - GO TO 2.

NO - Repair or replace ground connections.

2.CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT

1. Disconnect electric throttle control actuator harness connector.

2. Turn ignition switch ON.

3. Check the voltage between electric throttle control actuator harness connector and ground.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 25

DTC Index (Part 1)

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 809

1.CHECK CAN COMMUNICATION

1. Turn ignition switch ON and wait for 2 seconds or more.

2. Check "Self Diagnostic Result" of "METER/M&A"

YES - See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Initial Inspection and Diagnostic

Overview/CAN Fundamental/Trouble Diagnosis Flow Chart.

NO - See: Testing and Inspection/Scan Tool Testing and Procedures/CONSULT-III/GST Data Link Connector (DLC) Circuit.

ACTIVE AFS

DTC U1000 CAN COMM CIRCUIT

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

U1000 CAN COMM CIRCUIT

1.PERFORM SELF DIAGNOSTIC

1. Turn ignition switch ON and wait for 2 seconds or more.

2. Check "Self Diagnostic Result" of IPDM E/R.

Is "U1000: CAN COMM CIRCUIT" displayed?

YES - See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Initial Inspection and Diagnostic

Overview/CAN Fundamental/Trouble Diagnosis Flow Chart.

NO - See: Testing and Inspection/Initial Inspection and Diagnostic Overview/How to Perform Efficient Diagnosis For an Electrical Incident.

TROUBLE DIAGNOSIS FOR SYSTEM

DTC U1000 CAN COMMUNICATION LINE

DIAGNOSTIC PROCEDURE

- Check the following if "CAN COMM CIRCUIT [U1000]" is detected in self-diagnosis results of CONSULT-III.

1.CHECK CAN COMMUNICATION CIRCUIT

With CONSULT-III

1. Turn ignition switch "ON" and start engine.

2. Select "SELF-DIAG RESULTS" mode for "ALL MODE AWD/4WD" with in CONSULT-III.

3. Perform the self-diagnosis.

Is the "CAN COMM CIRCUIT [U1000]" displayed?

YES - Print out CONSULT-III screen and go to See: Powertrain Management/Computers and Control Systems/Information Bus/Application and

ID/CAN System Specification Chart.

NO - INSPECTION END

U1001

U1001 CAN COMM CIRCUIT

Description

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with

high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control

unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected

with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

Tuesday, January 14, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 652

3. Check the voltage between battery current sensor harness connector and ground.

Is the inspection result normal?

YES - GO TO 9.

NO - GO TO 3.

3.CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT-II

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between battery current sensor harness connector and ECM harness connector.

Is the inspection result normal?

YES - GO TO 5.

NO - GO TO 4.

4.DETECT MALFUNCTIONING PART

Check the following.

- Harness connectors E10, F1

- Harness for open between battery current sensor and ECM

- Repair open circuit.

5.CHECK SENSOR POWER SUPPLY CIRCUIT

Check harness for short to power and short to ground, between the following terminals.

Is the inspection result normal?

YES - GO TO 6.

NO - Repair short to ground or short to power in harness or connectors.

6.CHECK COMPONENTS

Check the following.

- CKP sensor ( See: P Code Charts/P0335.)

- CMP sensor (bank 2) ( See: P Code Charts/P0340.)

- EVT control position sensor (bank 2) ( See: P Code Charts/P1078.)

- EVAP control system pressure sensor ( See: P Code Charts/P0451.)

- Refrigerant pressure sensor ( See: Heating and Air Conditioning/Testing and Inspection/Component Tests and General Diagnostics/Magnet

Clutch Circuit.)

Is the inspection result normal?

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 299

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.

5. Let engine idle for 1 minute.

6. Select "FUEL INJECTION" in "ACTIVE TEST" mode, and select "HO2S2 (B1)/(B2)" as the monitor item with CONSULT-III.

7. Check "HO2S2 (B1)/(B2)" at idle speed when adjusting "FUEL INJECTION" to ?5%.

"HO2S2 (B1)/(B2)" should be above 0.70 V at least once when the "FUEL INJECTION" is +25%.

"HO2S2 (B1)/(B2)" should be below 0.18 V at least once when the "FUEL INJECTION" is -25%.

Is the inspection result normal?

YES - INSPECTION END

NO - GO TO 6.

3.CHECK HEATED OXYGEN SENSOR 2-I

Without CONSULT-III

1. Start engine and warm it up to the normal operating temperature.

2. Turn ignition switch OFF and wait at least 10 seconds.

3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.

4. Let engine idle for 1 minute.

5. Check the voltage between ECM harness connector terminals under the following condition.

Is the inspection result normal?

YES - INSPECTION END

NO - GO TO 4.

4.CHECK HEATED OXYGEN SENSOR 2-II

Monday, January 13, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 37

4. Check continuity between Intelligent Key unit connector and ground.

OK or NG

OK - Check the condition of harness and connector. If it is OK, check the self-diagnosis results using

CONSULT-III again.

NG - Repair or replace harness.

B2192

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

B2192 ID DISCORD, BCM-ECM

Self-diagnostic results:

"ID DISCORD, BCM-ECM" displayed on CONSULT-III screen

1.CONFIRM SELF-DIAGNOSTIC RESULTS

Confirm SELF-DIAGNOSTIC RESULTS "ID DISCORD BCM-ECM" displayed on CONSULT-III screen.

NOTE:

"ID DISCORD IMM-ECM":

Registered ID of BCM is in discord with that of ECM.

Is CONSULT-III screen displayed?

Yes - GO TO 2.

No - See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Testing and Inspection/Scan Tool Testing and Procedures/IVIS

(Infiniti Vehicle Immobilizer System-NATS)/CONSULT-III Functions (BCM-IMMU).

2.PERFORM INITIALIZATION WITH CONSULT-III

Perform initialization with CONSULT-III. Re-register all NATS ignition key IDs.

For initialization, refer to "CONSULT-III Operation Manual NATS-IVIS/NVIS".

NOTE:

If the initialization is not completed or malfunctions, CONSULT-III shows message on the screen.

Can the system be initialized?

Yes - ?Start engine. (END)

- (System initialization had not been completed.)

No - ECM is malfunctioning.

- Replace ECM.

- Perform initialization with CONSULT-III

For initialization, refer to "CONSULT-III Operation Manual NATS-IVIS/NVIS"

B2193

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)

B2193 CHAIN OF BCM-ECM

Self-diagnostic results:

"CHAIN OF BCM-ECM" displayed on CONSULT-III screen

2017 Infiniti G37 Sedan V6-3.7L Diagnostic and Repair Information # 10-038 Date: 100621

Engine Controls - ECM Programming Interruption Recovery

Classification: EC10-016

Reference: ITB10-038

Date: June 21, 2010

ECM REPROGRAM INTERRUPTION RECOVERY PROCEDURE

SERVICE INFORMATION

A complete step-by-step General Procedure for CONSULT-III (C-III) ECM Reprogram Interruption Recovery is now available in this bulletin as a

attachment.

While performing ECM (Engine Control Module) reprogramming, the reprogramming may stop (become interrupted) before it is 100% complete.

One of two messages may appear:

^ The VI probe is disconnected on USB, please check the connection of the probe.

^ Reprogramming fail, "Error code 0".

In many cases, reprogramming recovery is possible and the ECM may not need to be replaced if the complete ECM part number has been registered

into the ECM before reprogramming stopped.

NOTE:

ECM is referred to as ECU in C-III.

The ECM Reprogram Interruption Recovery General Procedure applies to Technical Service Bulletins that include ECM reprogramming published

in April 2010 and later.

IMPORTANT: BEFORE STARTING REPROGRAMMING

^ Connect a battery charger to the vehicle battery.

^ Be sure to turn OFF all vehicle electrical loads.

^ For ECM reprogramming, the C-III MUST be connected to the VI using the USB cable.

^ Be sure to connect the AC Adapter.

Page 241

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Page 244

Page 245

Page 246

Page 247

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Page 249

Page 250

Page 251

Page 252

Page 253

Page 254

Attachment - General Procedure

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 408

1.CHECK FOR INTAKE AIR LEAK AND PCV HOSE

1. Start engine and run it at idle speed.

2. Listen for the sound of the intake air leak.

3. Check PCV hose connection.

Is intake air leak detected?

YES - Discover air leak location and repair.

NO - GO TO 2.

2.CHECK FOR EXHAUST SYSTEM CLOGGING

Stop engine and visually check exhaust tube, three way catalyst and muffler for dents.

Is the inspection result normal?

YES-1 - With CONSULT-III: GO TO 3.

YES-2 - Without CONSULT-III: GO TO 4.

NO - Repair or replace malfunctioning part.

3.PERFORM POWER BALANCE TEST

With CONSULT-III

1. Start engine.

2. Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT-III.

3. Check that each circuit produces a momentary engine speed drop.

Is the inspection result normal?

YES - GO TO 9.

NO - GO TO 4.

4.CHECK FUNCTION OF FUEL INJECTOR

1. Start engine and let it idle.

2. Listen to each fuel injector operation.

Clicking sound should be heard.

Is the inspection result normal?

YES - GO TO 5.

NO - Perform trouble diagnosis for FUEL INJECTOR, See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Testing and

Inspection/Component Tests and General Diagnostics/Diagnosis Procedure.

5.CHECK FUNCTION OF IGNITION COIL-I

CAUTION:

Perform the following procedure in a place with no combustible objects and good ventilation.

1. Turn ignition switch OFF.

2. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pressure.

NOTE:

Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following procedure.

3. Start engine.

4. After engine stalls, crank it 2 or 3 times to release all fuel pressure.

5. Turn ignition switch OFF.

6. Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.

7. Remove ignition coil and spark plug of the cylinder to be checked.

Sunday, January 12, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 13

DTC Index B2451-B2455

U1000

DTC INDEX

U1000

DTC Index U1000

B2112-B2128

DTC INDEX

B2112-B2128

DTC Index B2112-B2128

B1001-B1015

DTC INDEX

B1001-B1015

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 378

DTC Logic

DTC DETECTION LOGIC

NOTE:

If DTC P0196 is displayed with P0197 or P0198, first perform the trouble diagnosis for DTC P0197, P0198. See: P Code Charts/P0197.

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.

- GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE-I

1. Start engine and warm it up to normal operating temperature.

2. Turn ignition switch OFF and wait at least 10 seconds.

3. Turn ignition switch ON.

4. Turn ignition switch OFF and wait at least 10 seconds.

5. Start engine and let it idle for 5 minutes and 10 seconds.

6. Check 1st trip DTC.

Is 1st trip DTC detected?

YES - See: P Code Charts/P0196.

NO - GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDURE-II

With CONSULT-III

1. Select "DATA MONITOR" mode with CONSULT-III.

2. Check that "COOLAN TEMP/S" indicates above 70锟紺 (158锟紽).

If it is above 70锟紺 (158锟紽), go to the following steps.

If it is below 70锟紺 (158锟紽), warm engine up until "COOLAN TEMP/S" indicates more than 70锟紺 (158锟紽).

Then perform the following steps.

3. Turn ignition switch OFF and soak the vehicle in a cool place.

4. Turn ignition switch ON.

NOTE:

Do not turn ignition switch OFF until step 8.

5. Select "DATA MONITOR" mode with CONSULT-III.

6. Check the following.

If they are within the specified range, perform the following steps.

If they are out of the specified range, soak the vehicle to meet the above conditions. Then perform the following steps.

Saturday, January 11, 2020

2017 Infiniti G37 Sedan V6-3.7L Diagnostic and Repair Information # 11-064B Date: 120125

Fuel System - Squeaking Noise From Accelerator Pedal

Classification: BT11-035B

Reference: ITB11-064B

Date: January 25, 2012

SQUEAK NOISE WHEN PRESSING ACCELERATOR PEDAL

This bulletin has been amended to include a parts information table only. No other changes have been made to the body of this bulletin.

APPLIED VEHICLES:2007-2012 G37 Sedan (V36)

2008-2012 G37 Coupe (CV6)

2009-2012 Convertible (HV36)

2011-2012 G25 Sedan (V36)

2008-2012 EX35 (J50)

2011-2012 M(Y51)

IF YOU CONFIRM:

The Accelerator Pedal squeaks when being pressed.

ACTION:

Apply urethane foam pad from Squeak and Rattle Kit between the upper Accelerator Pedal Bracket and the Accelerator Pedal Assembly.

^ See steps below to apply foam.

NOTE:

Refer to Electronic Service Manual (ESM) for procedure to remove and reinstall Accelerator Pedal Assembly and for Accelerator Pedal Released

Position Learning.

PARTS INFORMATION

Page 109

CLAIMS INFORMATION

Confirm that engine and ignition are off

1. Remove Accelerator Pedal Assembly

^ Figure 2 shown with Accelerator Pedal removed, and bracket circled in green.

> Pedal removed.

Page 110

2. Attach piece of 1.5 by 2.0 inch foam, from "Squeak and Rattle Kit", to backside of Accelerator Assembly Bracket, with adhesive facing outward.

^ 2.0" x 1.5" precut urethane foam. Part number (76884-71L02).

3. Figure 4 shows foam attached to backside of bracket.

4. Side view of foam attached to backside of bracket.

Page 111

5. Fold foam over and stick to front side of bracket.

6. Re-install Accelerator Pedal over bracket with foam installed.

7. Refer to ESM for Accelerator Pedal Self Learn Procedure.

8. After installing Accelerator Pedal Assembly over foam, confirm that the squeak noise is gone.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 527

Is the inspection result normal?

YES - INSPECTION END

NO - Replace EVAP control system pressure sensor

P0455

P0455 EVAP CONTROL SYSTEM

DTC Logic

DTC DETECTION LOGIC

This diagnosis detects a very large leak (fuel filler cap fell off etc.) in EVAP system between the fuel tank and

EVAP canister purge volume control solenoid valve.

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 121

Is the inspection result normal?

YES - GO TO 4.

NO - GO TO 3.

3.REPLACE EVT CONTROL MAGNET RETARDER

1. Replace malfunctioning EVT control magnet retarder.

2. Perform See: Engine, Cooling and Exhaust/Engine/Timing Components/Variable Valve Timing/Testing and Inspection/Special Repair

Requirement.

- INSPECTION END

4.CHECK EVT CONTROL POSITION SENSOR

See: P Code Charts/P1078.

Is the inspection result normal?

YES - GO TO 5.

NO - Replace malfunctioning EVT control position sensor.

5.CHECK CRANKSHAFT POSITION SENSOR

See: P Code Charts/P0335.

Is the inspection result normal?

YES - GO TO 6.

NO - Replace crankshaft position sensor.

6.CHECK CAMSHAFT POSITION SENSOR

See: P Code Charts/P0340.

Is the inspection result normal?

YES - GO TO 7.

NO - Replace malfunctioning camshaft position sensor.

7.CHECK CAMSHAFT (EXH)

Check the following.

- Accumulation of debris to the signal plate of camshaft rear end

- Chipping signal plate of camshaft rear end

Is the inspection result normal?

YES - GO TO 8.

NO - Remove debris and clean the signal plate of camshaft rear end or replace camshaft.

8.CHECK TIMING CHAIN INSTALLATION

Check service records for any recent repairs that may cause timing chain misaligned.

Are there any service records that may cause timing chain misaligned?

YES - Check timing chain installation. See: Engine, Cooling and Exhaust/Engine/Timing Components/Timing Chain/Service and

Repair/Removal and Installation.

NO - GO TO 9.

9.REPLACE EVT CONTROL PULLEY ASSEMBLY

1. Replace exhaust valve timing control pulley assembly and EVT control magnet retarder. See: Engine, Cooling and Exhaust/Engine/Timing

Components/Timing Cover/Service and Repair and See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push

Rods/Camshaft/Service and Repair/Removal and Installation.

2. Perform See: Engine, Cooling and Exhaust/Engine/Timing Components/Variable Valve Timing/Testing and Inspection/Special Repair

Requirement.

- INSPECTION END

10.CHECK INTERMITTENT INCIDENT

See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Trouble

Diagnosis For Intermittent Incident/Description.

- INSPECTION END

Component Inspection

1.CHECK EXHAUST VALVE TIMING CONTROL MAGNET RETARDER

1. Turn ignition switch OFF.

2. Disconnect exhaust valve timing control magnet retarder harness connector.

Friday, January 10, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 627

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

- GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Turn ignition switch OFF and wait at least 10 seconds.

3. Turn ignition switch ON.

4. Check 1st trip DTC.

Is 1st trip DTC detected?

YES - Go to See: P Code Charts/P1225.

NO - INSPECTION END

Diagnosis Procedure

1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1. Turn ignition switch OFF.

2. Remove the intake air duct.

3. Check if foreign matter is caught between the throttle valve (1) and the housing.

Is the inspection result normal?

YES - GO TO 2.

NO - Remove the foreign matter and clean the electric throttle control actuator inside.

2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1. Replace malfunctioning electric throttle control actuator.

2. Go to See: P Code Charts/P1225.

- INSPECTION END

Special Repair Requirement

1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Programming and Relearning/Throttle Valve Closed

Position Learning/Special Repair Requirement

- GO TO 2.

2.PERFORM IDLE AIR VOLUME LEARNING

See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Idle Speed/Testing and Inspection/Programming and

Relearning/Special Repair Requirement

- END

P1235

P1226, P1235 TP SENSOR

2017 Infiniti G37 Sedan V6-3.7L Diagnostic and Repair Information # 09-050B Date: 111003

Tire Monitor System - Warning Lamp Diagnostic Info.

Classification: WT09-005B

Reference ITB09-050B

Date: October 3, 2011

TIRE PRESSURE MONITORING SYSTEM (TPMS) WARNING LIGHT DIAGNOSTIC PROCEDURE

This bulletin has been amended. Please discard previous versions.

APPLIED VEHICLES:

All Infiniti vehicles with Tire Pressure Monitoring System (TPMS)

IF YOU CONFIRM

Page 143

The TPMS warning light is illuminated (continuously or flashing)

ACTIONS

STEP 1: Turn ignition to "OFF" and then "ON" position (engine not required to be running).

^ If the TPMS warning light is continuously illuminated (not flashing) the TPMS is operating normally and has detected low tire pressure in one of

the tires. Go to STEP 2.

NOTE:

> Normal tire pressure maintenance is not covered under warranty.

> Some 2011 and newer models will display an alert in the Vehicle "CHECK TIRE information display near the speedometer. The alert will

read "Check Tire PRESSURE Pressure" or similar and will accompany the illuminated TPMS light.

^ If the TPMS warning light is flashing for approximately one minute there is a TPMS system malfunction. Do not go to Step 2. Instead check the

DTC and refer to the Service Manual for repair instructions.

STEP 2: Leave the ignition in the "ON" position* (engine is not required to be running) and set the tire pressure to the recommended pressure.

^ Refer below for Important Tire Pressure Information.

* Leaving the ignition in the ON position may allow the TPMS to detect the corrected tire pressure more quickly on 2009 and newer models

(WITHOUT having to drive the vehicle).

Important Tire Pressure Information:

Each vehicle is equipped with a "Tire and Loading Information" placard (see example in Figure 1).

For factory equipped tires follow the recommended code pressure on the placard to set the tire pressure on the vehicle.

Tire pressure can be affected by factors such as tire temperature, outside temperature, time and altitude.

^ Refer to ITB08-015 for additional information about these factors that affect tire pressure including seasonal temperature changes.

When tire pressure is low make sure it is not caused by a leak. If needed repair as necessary.

After tires are inflated to the recommended pressure the vehicle may need to be driven at speeds above 16 mph for the TPMS to turn off the low tire

pressure warning light. DO NOT USE CONSULT TO RESET THE TPMS.

For additional Tire Pressure Information refer to ITB08-015 (Tire Pressure Information).

Thursday, January 9, 2020

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 759

3. Check the voltage between APP sensor harness connector and ground.

Is the inspection result normal?

YES - GO TO 7.

NO - GO TO 3.

3.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between APP sensor harness connector and ECM harness connector.

Is the inspection result normal?

YES - GO TO 5.

NO - GO TO 4.

4.DETECT MALFUNCTIONING PART

Check the following.

- Harness connectors E108, M15

- Harness for open between ECM and APP sensor

- Repair open circuit.

5.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-III

Check harness for short to power and short to ground, between the following terminals.

Is the inspection result normal?

YES - GO TO 6.

NO - Repair short to ground or short to power in harness or connectors.

6.CHECK COMPONENTS

Check the following.

- CKP ( See: P Code Charts/P0335.)

- CMP sensor (bank 2) ( See: P Code Charts/P0340.)

- EVT control position sensor (bank 2) ( See: P Code Charts/P1078.)

- Battery current sensor ( See: P Code Charts/P1550.)

- EVAP control system pressure sensor ( See: P Code Charts/P0451.)

- Refrigerant pressure sensor ( See: Heating and Air Conditioning/Testing and Inspection/Component Tests and General Diagnostics/Magnet

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 426

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

- GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE-I

1. Start engine and warm it up to normal operating temperature.

2. Turn ignition switch OFF and wait at least 10 seconds.

3. Turn ignition switch ON.

4. Turn ignition switch OFF and wait at least 10 seconds.

5. Restart engine and let it idle for approximately 15 minutes.

6. Check 1st trip DTC.

Is 1st trip DTC detected?

YES - Go to Diagnosis Procedure.

NO - GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDURE-II

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Start engine and drive the vehicle under similar conditions to (1st trip) Freeze Frame Data for a certain time. Refer to the table below.

Hold the accelerator pedal as steady as possible.

Similar conditions to (1st trip) Freeze Frame Data mean that the following conditions should be satisfied at the same time.

CAUTION:

Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws when driving.

Driving time varies according to the engine speed in the freeze frame data.

5. Check 1st trip DTC.

Is 1st trip DTC detected?

YES - Go to Diagnosis Procedure.

NO - INSPECTION END

Diagnosis Procedure

1.CHECK FOR INTAKE AIR LEAK AND PCV HOSE

1. Start engine and run it at idle speed.

2. Listen for the sound of the intake air leak.

3. Check PCV hose connection.