C1451-14

C1451-14-REAR DIFFERENTIAL POSITION SENSOR - CIRCUIT SHORT TO GROUND OR OPEN





For a complete wiring diagram, refer to the Wiring Information

- When Monitored:
With the ignition on and no system undervoltage or overvoltage or supply voltage low conditions present.

- Set Condition:
Sensor input voltage is below a specified value for a calibrated amount of time.





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 6

2. (T333) HALL SENSOR SIGNAL 1 CIRCUIT SHORTED TO GROUND




1. Measure the resistance between ground and the (T333) Hall Sensor Signal 1 circuit in the Rear Differential Solenoid harness connector.

Is the resistance below 5.0 ohms?

Yes

- Repair the (T333) Hall Sensor Signal 1 circuit for a short to ground.
- Perform the ELSD VERIFICATION TEST. ELSD Verification Test.

No

- Go To 3

3. (T333) HALL SENSOR SIGNAL 1 CIRCUIT OPEN OR HIGH RESISTANCE




1. Measure the resistance of the (T333) Hall Sensor Signal 1 circuit between the ELSD C1 harness connector and the Rear Differential Solenoid harness connector.

Is the resistance below 5.0 ohms?

Yes

- Go To 4

No

- Repair the (T333) Hall Sensor Signal 1 circuit for an open or high resistance.
- Perform the ELSD VERIFICATION TEST. ELSD Verification Test.

4. (T333) HALL SENSOR SIGNAL 1 CIRCUIT SHORTED TO (T335) HALL SENSOR RETURN CIRCUIT




1. Measure the resistance between the (T333) Hall Sensor Feed Signal 1 circuit and the (T335) Hall Sensor Return circuit at the Rear Differential Solenoid harness connector.

Is the resistance below 5.0 Ohms?

Yes

- Repair the short between the (T333) Hall Sensor Feed Signal 1 circuit and the (T335) Hall Sensor Return circuit.
- Perform the ELSD VERIFICATION TEST. ELSD Verification Test.

No

- Go To 5

5. 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. Start the engine.
4. With the scan tool, record and erase the DTCs.
5. Cycle the ignition switch from on to off.
6. Start the engine.
7. With the scan tool, read the 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.

6. INTERMITTENT WIRING AND CONNECTORS
1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
2. Start the engine.
3. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors.
4. 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.