C2110-11

C2110-11-SENSOR SUPPLY 1 VOLTAGE - CIRCUIT SHORT TO GROUND





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

- When Monitored:
Ignition on. Battery voltage between 9 and 16 volts.

- Set Condition:
The Air Suspension Control Module (ASCM) detects when the 5 Volt Sensor Supply 1 circuit has a short to ground while ignition is in the Run position.





Diagnostic Test

1. DTC IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. With the scan tool, read the DTCs in the ASCM.

Is the DTC status Active at this time?

Yes

- Go To 2

No

- Go To 4

2. (S143) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND




1. Turn the ignition off.
2. Disconnect the ASCM C1 harness connector.
3. Disconnect the Right Front Ride Height Sensor harness connector.
4. Measure the resistance between ground and the (S143) 5 Volt Supply circuit.

Is the resistance below 5.0 Ohms?

Yes

- Repair the (S143) 5 Volt Supply circuit for a short to ground.
- Perform the ASCM VERIFICATION TEST. ASCM Verification Test.

No

- Go To 3

3. (S146) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND




1. Disconnect the ASCM C2 harness connector.
2. Disconnect the Left Rear Ride Height Sensor harness connector.
3. Measure the resistance between ground and the (S146) 5 Volt Supply circuit.

Is the resistance below 5.0 Ohms?

Yes

- Repair the (S146) 5 Volt Supply circuit for a short to ground.
- Perform the ASCM VERIFICATION TEST. ASCM Verification Test.

No

- Replace the Air Suspension Control Module (ASCM). Air Suspension Control Module - Removal.
- Perform the ASCM VERIFICATION TEST. ASCM Verification Test.

4. INTERMITTENT WIRING AND CONNECTORS
1. Using the wiring diagram/schematic as a guide, inspect the wiring harness and connectors.
2. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit.
3. Look for the data to change or for the DTC to reset during the wiggle test.
4. While monitoring the scan tool data relative to this circuit, move the selector switch to each position several times.
5. Look for the data to change other than as expected or for the DTC to reset.

Were any problems found?

Yes

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

No

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