Electronically Controlled Clutch (ECC)

C1078-TIRE REVOLUTIONS RANGE PERFORMANCE

For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
Continuous.

- Set Condition:
Programmed value for tire size is not within acceptable range.





Diagnostic Test

1. ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTCS PRESENT
Ignition on, engine not running.
With the scan tool, select View DTCs in the ABS Module.
Are there any ABS DTCs present?

Yes

- Diagnose and repair the DTC(s).

No

- Go to 2


2. CHECK FOR A DTC C1078-TIRE REVOLUTIONS RANGE PERFORMANCE
NOTE: This DTC must be active for the results of this test to be valid.

Turn the ignition on.
With the scan tool, read and record DTCs.
With the scan tool, erase DTCs.
Cycle the ignition switch from off to on.
With the scan tool, read and record DTCs.
Does the scan tool display: C1078-TIRE REVOLUTIONS RANGE PERFORMANCE?

Yes

- Go to 3

No

- Go to 4

3. INCORRECT VALUE PROGRAMMED INTO TIPM




Verify the correct tire/wheel information is programmed in the TIPM.
Is the correct value programmed in the TIPM according to the chart?

Yes

- Test complete.
- Perform AWD Control Module VERIFICATION TEST.AWD Control Module Verification Test

No

- Program the correct Tire/Wheel information in the TIPM.
- Perform AWD Control Module VERIFICATION TEST.AWD Control Module Verification Test

4. 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.