C1484-13

C1484-13-REAR DIFFERENTIAL BRAKE CONTROL - CIRCUIT OPEN





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on and no system undervoltage or overvoltage condition present.

- Set Condition:
The Electronic Limited Slip Differential (ELSD) Module detects excessive voltage fluctuation on the Sensor circuits.





1. VERIFY THE DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, record and erase DTCs.
3. Cycle the ignition switch from off to on.
4. With the scan tool, read DTCs.

Is the DTC active at this time?

Yes

- Go To 2

No

- Go To 5

2. (T336) DIFFERENTIAL MOTOR CLAMP IN/OUT CIRCUIT OPEN OR HIGH RESISTANCE




1. Turn the ignition off to the lock position.
2. Disconnect the Rear Differential Solenoid harness connector.
3. Disconnect the ELSD C1 harness connector.
4. Measure the resistance of the (T336) Differential Motor Clamp In/Out circuit between the Rear Differential Solenoid harness connector and the ELSD C1 harness connector.

Is the resistance above 5.0 Ohms?

Yes

- Repair the (T336) Differential Motor Clamp In/Out circuit for an open or high resistance.
- Perform the ELSD VERIFICATION TEST. ELSD Verification Test.

No

- Go To 3

3. (T337) DIFFERENTIAL MOTOR CLAMP OUT/IN CIRCUIT OPEN OR HIGH RESISTANCE




1. Disconnect the ELSD C3 harness connector.
2. Measure the resistance of the (T337) Differential Motor Clamp Out/In circuit between the Rear Differential Solenoid harness connector and the ELSD C3 harness connector.

Is the resistance above 5.0 Ohms?

Yes

- Repair the (T337) Differential Motor Clamp Out/In circuit for an open or high resistance.
- Perform the ELSD VERIFICATION TEST. ELSD Verification Test.

No

- Go To 4

4. ELECTRONIC LIMITED SLIP DIFFERENTIAL (ELSD) MODULE
1. Turn the ignition off to the lock position.
2. Replace the Electronic Limited Slip Differential (ELSD) Motor. Removal.
3. Ignition on, engine not running.
4. With the scan tool, erase DTCs.
5. Cycle the ignition switch from off to on.
6. With the scan tool, read DTCs.

Does the DTC remain active?

Yes

- Replace the Electronic Limited Slip Differential (ELSD) Module. Electronic Limited Slip Differential Control Module - Removal.
- Perform the ELSD VERIFICATION TEST. ELSD Verification Test.

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time.

5. INTERMITTENT WIRING AND CONNECTORS
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
2. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors.
3. Look for the data to change or for the DTC to reset during the wiggle test.

Were any problems found?

Yes

- Repair as necessary.
- Perform the ELSD VERIFICATION TEST. ELSD Verification Test.

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time.