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

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.

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^ 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

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

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Battery Is Possibly Connected

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Normal Resistance - CAN Harness

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Normal Resistence - CAN High to Ground

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Normal Resistence - CAN Low to Ground

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Open CAN Harness

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Short - CAN High to CAN Low

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Normal Voltage - CAN High

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Normal Voltage - CAN Low

2017 Infiniti G37 Sedan V6-3.7L Diagnostic and Repair Information # 03-051F Date: 120221

Lighting - Exterior Lamp Fogging
Classification: EL03-031F
Reference: ITB03-051F
Date: February 21, 2012
EXTERIOR LAMP FOGGING
This bulletin has been amended. The Applied Vehicles section and the first paragraph of the Service Information section have been revised. Please
discard all previous versions. This bulletin supercedes ITB08-019A.
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APPLIED VEHICLES: 2001-2012 Infiniti, All Models
SERVICE INFORMATION
Occasionally customers may notice water vapor or fog in the exterior lamps. This is generally NOT due to a defect.
The following information illustrations and flow chart are provided to help you in determining if an incident for water/condensation in lamps is
normal or not.
All current exterior lamp assemblies are vented to the atmosphere (not sealed).
^ This is necessary to allow for expansion and contraction of air from temperature "variations" (warmer or colder) without damage to the lamp.
^ Moisture in the air sometimes "travels" into and out of the lamp assembly through these vents.
^ Certain environmental conditions may cause moisture to condense.
^ The fogging/cloudiness should disappear over time when the lamp is in a dry environment.
Fog may temporarily form inside the lens of the exterior lamp assemblies based on environmental conditions or sudden temperature changes (such as
in a car wash or parked on a cold sunny day). This is normal. See Figure 1.
NOTE:
This condensation can appear anywhere on the outer lens typically at its coldest location.
If the moisture trickles, drips, or pools it may not be considered normal and the headlamp assembly may have a water leak path. See Figure 2 for an
example.
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If large drops of water collect inside the lens refer to the flow chart above to find the next step to take.
SERVICE PROCEDURE
Should a customer note water in a lamp assembly please use the following flow chart to determine if the condition is normal or requires lamp
replacement.

2017 Infiniti G37 Sedan V6-3.7L Diagnostic and Repair Information # 12-018 Date: 120410

Engine Controls - ECM Replacement Procedure
Classification: EC12-009
Reference: ITB12-018
Date: April 10, 2012
ECM REPLACEMENT PROCEDURES WITH CONSULT III PLUS
APPLIED VEHICLES: All 2004 and later
IF YOU CONFIRM:
The Electronic Control Module (ECM) needs to be replaced on a 2004 MY and later vehicle.
ACTIONS:
After installing ECM:
^ Perform ECM Re-communicating Function (if supported).
^ Perform the "ACCELERATOR PEDAL & THROTTLE VALVE CLOSED POSITION LEARNING" procedure (see step 3).
^ Perform the "IDLE AIR VOL LEARNING" procedure (when applicable) using CONSULT-III plus (CIII plus). (See step 4)
^ For 2005 and later vehicles, enter the vehicle VIN into the new ECM (see step 5).
^ Check for any new updates for the new ECM you're installing (see step 6).
CAUTION:
^ Failure to perform all the work steps in the specified order can cause poor engine running, MIL ON, or vehicle emission test rejection.
^ Some vehicles may have Additional Services When Replacing the ECM not covered within this bulletin. Refer to the model specific ESM and
CIII plus "Maintenance" tab for any additional model specific services.
IMPORTANT:
The purpose of "ACTIONS" (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Service
Procedure as it contains information that is essential to successfully completing this repair.
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CLAIMS INFORMATION
Service Procedure
SERVICE PROCEDURE
ECM Re-communication Function
1. Re-communicate the ECM with the BCM or Intelligent key.
^ Performing the following procedure can automatically perform a re-communication of a new ECM with a BCM or Intelligent Key unit (not all
models supported) so that the NATS keys do not need to be registered.
^ This Function will only work when the ECM has been replaced with a new one which has never been energized onboard.
^ If this function is not supported all of the keys may need to be individually registered.
a. Install new ECM.
. Use a registered key (*) to turn ignition switch to "ON".
* To perform this step, use a key that is registered to the original ECM that was replaced.
c. Maintain ignition switch in the "ON" position for at least 5 seconds.
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d. Turn ignition switch to "OFF".
e. Start engine.
> If engine can be started continue to step 3.
2. If engine will NOT start, after you perform the ECM Re-Communication Function, all ignition keys will need to be individually registered,
including spare keys with CIII plus and then proceed with step 3.
^ Refer to the Immobilizer tab on the CIII plus home page to register keys.
NOTE:
When registering new Key IDs or replacing the ECM with other than brand new unit, refer to the Immobilizer tab on the CIII plus home page.
^ If multiple keys are attached to the key holder, separate them before work.
^ Distinguish keys with unregistered key ID from those with registered ID.
Accelerator Pedal & Throttle Valve Closed Position Learning
3. Perform the Accelerator Pedal & Throttle Valve Closed Position Learning as follows:
a. Make sure the accelerator pedal is fully released.
b. Turn the ignition switch "ON" for 2 seconds.
c. Turn the ignition switch "OFF" for 10 seconds.
d. Turn the ignition switch "ON" for 2 seconds, then
e. Turn the ignition switch "OFF" again for 10 seconds (see Figure 1).
f. Proceed with step 4 (below).
Perform Idle Air Volume Learning (IAVL)
NOTE:
Make sure all electrical loads are turned OFF, including A/C, defroster, radio, lights, etc. while performing the following procedures. Also, make
sure the engine cooling fans are NOT operating during the following procedures.
4. Perform the Idle Air Volume Learning procedure as follows:
a. Connect CIII plus to the vehicle.
b. Warm up engine and transmission to operating temperature.
NOTE:
Vehicle may have to be driven to warm transmission enough to allow IAVL to complete.
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c. In the CIII plus "Maintenance mode", select "IDLE AIR VOL LEARN" and then "Confirm". See Figure 2.
d. Press "Next" then "Start" on the IDLE AIR VOL LEARN screen. See Figure 3.
^ START cannot be selected until all operating conditions have been met.
The IAVL procedure will take several minutes to complete.
^ CIII plus will display "EXECUTING" in the "Current status" box while the IAVL EXECUTING procedure is in process. See Figure 4.
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^ CIII plus will display "COMPLETE" in the Current status box when the IAVL procedure is finished. See Figure 5.
f. Once the IAVL procedure is finished, COMPLETE proceed with step 5 (below).
For 2005 and Later MY Vehicles ONLY: Enter VIN into New Service Replacement ECM
5. Enter the VIN into the new service replacement ECM as follows:
a. Select "Diagnosis (One System)", "ENGINE", "Work support" and "VIN REGISTRATION". See Figure 6.
b. Enter the vehicle VIN in both the VIN (1st TIME) and VIN (2nd TIME) boxes, then select Start. See Figure 7.
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c. Once completed (COMAND SUCCEED; See Figure 8) turn the ignition off for 10 seconds, then back on and check for any DTCs.
d. Select "READ VIN" and confirm that the VIN is correct.
^ If VIN does not display it can also be checked through the "RE/programming, Configuration" tab.
Check for ECM Updates
6. Check and confirm that ECM is updated to most recent part number and perform reprogram procedure if not most current.
> Select and use the reprogramming option that does not have the message "Caution! Use ONLY with NTBXX-XXX".
^ If you are not familiar with checking for an ECM update or with the reprogramming procedure refer to C-III plus "ECM Reprogramming
general procedure".
^ If an update is not listed and a blank screen is displayed (see figure 9), a reprogram is not available for the ECM.