2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 589
- Always drive vehicle at a safe speed.
1.PRECONDITIONING
If "DTC CONFIRMATION PROCEDURE" is previously conducted, always turn ignition switch OFF and wait at least 10 seconds before
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 "5TH GR FNCTN P0735" in "DTC & SRT confirmation" in "TRANSMISSION".
2. Drive vehicle with manual mode and maintain the following conditions.
GEAR : 5
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 "P0735" 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 : 5th
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 "P0735" 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/P0735/7AT RE7R01A.
YES-4 - "P0735" is detected: Go to See: P Code Charts/P0735/7AT 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
P0740 TORQUE CONVERTER
Description
- The torque converter clutch solenoid valve is activated, with the gear in D3, D4, D5, M4 and M5 by the TCM in response to signals sent from
the output speed sensor and accelerator pedal position sensor (throttle position sensor). Torque converter clutch piston operation will then be
