C2208

C2208-AWD ECU INTERNAL





For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
With the ignition on.

- Set Condition:
The All Wheel Drive (AWD) Module has detected a failure internal to the controller.





Diagnostic Test

1. ACTIVE DTC
Ignition on, engine not running.
With the scan tool, read DTCs.
Is the DTC active at this time?

Yes

- Go to 2

No

- Go to 5

2. All Wheel Drive (AWD) Internal Failure
With the scan tool, check the AWD failure indicator light.
Is the AWD failure indicator light active at this time?

Yes

- Go to 3

No

- Go to 4

3. (T312) REAR DIFFERENTIAL SOLENOID CONTROL CIRCUIT SHORTED TO VOLTAGE




Turn the ignition off to the lock position.
Disconnect the AWD Control Module harness connector.
Measure the voltage of the (T312) Rear Differential Solenoid Control circuit in the AWD Module harness connector.
Is there any voltage present?

Yes

- Repair the short to voltage in the (T312) Rear Differential Solenoid Control circuit.
- Perform AWD Control Module VERIFICATION TEST.AWD Control Module Verification Test

No

- Go to 4

4. ALL WHEEL DRIVE MODULE
The AWD Module has detected an internal failure.
View repair

Repair

- Replace the All Wheel Drive Module.
- Perform the AWD VERIFICATION TEST.AWD Control Module Verification Test.

5. INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
Wiggle test the wiring harness and connectors while checking for shorted and open circuits.
Using the scan tool, monitor the data related to this circuit while performing the wiggle test. Look for the data to change or for the DTC to reset.
Were there any problems found?

Yes

- Repair as necessary.
- Perform AWD Control Module VERIFICATION TEST.AWD Control Module Verification Test

No

- Test Complete.