C143E

C143E - STABILIZER BAR SWITCH CIRCUIT LOW





For a complete wiring diagram refer to Diagrams/Electrical. Electrical Diagrams


- When Monitored:

Ignition on.

- Set Condition:

During switch operation, the FDCM senses the Disconnecting Stabilizer Bar Switch sense is below 0.25 volt.







1. DTC ACTIVE

CAUTION: Before removing the FDCM harness connector, clean the connector and locking cam area of dirt and debris. Failure to do so can result in the connector being jammed or damage to the locking cams on the harness connector or module. Do not force the assist arm when releasing or installing the harness connector.

Turn the ignition on, engine not running

With the scan tool, read FDCM DTC(s).

Is the DTC active at this time?

Yes

- Go To 2

No

- Go To5



2. DISCONNECTING STABILIZER BAR SWITCH OPERATION

Turn the ignition off.

Disconnect the Disconnecting Stabilizer Switch harness connector.

Remove the Disconnecting Stabilizer Switch.

Measure the resistance on the Disconnecting Stabilizer Switch between the Switch Supply terminal and the Stabilizer Switch Sense terminal.

The resistance must read as follows for each position of the switch.
- Off Road: 33 ohms +/- 5%
- On Road: 510 ohms +/- 5%
- Switch Not Applied: 2.2k ohms +/- 5%

Does the ohmmeter read correctly for each position of the Stabilizer Bar Switch

Yes

- Go To3

No

- Replace the Disconnecting Stabilizer Switch.
- Perform FDCM VERIFICATION TEST. Verification Tests



3. (T531) STABILIZER BAR SWITCH SENSE CIRCUIT SHORTED TO GROUND





Disconnect the FDCM harness connector.

Measure the resistance of the (T531) Stabilizer Bar Switch Sense circuit in the Disconnecting Stabilizer Switch harness connector to ground.

Is the resistance below 5.0 ohms?

Yes

- Repair the short to ground in the (T531) Disconnecting Stabilizer Switch Sense circuit.
- Perform FDCM VERIFICATION TEST. Verification Tests

No

- Go To4



4. (T536) SWITCH SUPPLY CIRCUIT SHORT TO GROUND





Measure the resistance of the (T536) Switch Supply circuit in the Disconnecting Stabilizer Switch harness connector to ground.

Is the resistance below 5.0 ohms?

Yes

- Repair the short to ground in the (T536) Switch Supply circuit.
- Perform FDCM VERIFICATION TEST. Verification Tests

No

- Replace the FDCM
- Perform FDCM VERIFICATION TEST. Verification Tests



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.

While monitoring the Stabilizer Bar State on the scan tool, move the switch to each position. The scan tool display must match the position on the actual switch.

Were there any problems found?

Yes

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

No

- Test Complete.