C141B

C141B-FRONT DIFFERENTIAL CLUTCH PERFORMANCE





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
The ignition on. No Solenoid DTCs present.

- Set Condition:
The solenoid duty cycle is greater than 95% and the wheel slippage is greater than 50%.





Diagnostic Test

1. ACTIVE DTC
NOTE: You must diagnose any Solenoid circuit (Low or High) DTCs first if set along with this DTC before continuing.

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

Yes

- Go To 2

No

- Go To4

2. WIRING HARNESS INSPECTION
Inspect the wiring harness from both solenoids to the FDCM. Ensure that the harness has routed correctly.
Inspect the FDCM harness connector and Differential Solenoid connectors. Ensure the terminals are clean and no damage is present.
Was the wiring harness and connectors OK?

Yes

- Go To 3

No

- Repair as necessary.
- Perform FDCM VERIFICATION TEST Verification Tests.


3. INSPECTION DIFFERENTIAL
Ensure the Differential is operating properly.
Inspect the Differential for external fluid leaks. Repair as necessary.
Is the Differential operating properly?

Yes

- Replace the Front Differential Solenoid.
- Perform FDCM VERIFICATION TEST Verification Tests.

No

- Repair as necessary.
- Perform FDCM VERIFICATION TEST Verification Tests.


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 FDCM VERIFICATION TEST Verification Tests.

No

- Test Complete.