C15B2-12

C15B2-12-LEFT FRONT ACCELERATION SENSOR - CIRCUIT SHORT TO BATTERY

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

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

- Set Condition:
The Active Damping Control Module (ADCM) detects when the Left Front Acceleration Sensor Signal is shorted to voltage while the ignition is in the Run position.





1. VERIFY THE 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 ADCM.

Is the DTC active at this time?

Yes

- Go To 2

No

- Go To 6

2. LEFT FRONT ACCELERATION SENSOR HARNESS CONNECTOR

NOTE: Make sure the Acceleration Sensor harness connector is connected correctly.

1. Turn the ignition off.
2. Inspect the Acceleration Sensor harness connector for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.

Were any problems found?

Yes

- Repair as necessary.
- Perform the ADCM VERIFICATION TEST. Active Damping Control Module (ADCM) Verification Test.

No

- Go To 3

3. CHECK THE (S162) LEFT FRONT ACCELERATION SENSOR SIGNAL CIRCUIT FOR A SHORT TO BATTERY
1. Turn the ignition off.
2. Disconnect the Left Front Acceleration Sensor harness connector.
3. Disconnect the ADCM C1 harness connector.
4. Turn the ignition on.
5. Measure the voltage between ground and the (S162) Left Front Acceleration Sensor Signal circuit.

Is the voltage above 5.25 volts?

Yes

- Repair the (S162) Left Front Acceleration Sensor Power circuit for a short battery.
- Perform the ADCM VERIFICATION TEST. Active Damping Control Module (ADCM) Verification Test.

No

- Go To 4

4. CHECK THE (S161) LEFT FRONT ACCELERATION SENSOR RETURN CIRCUIT FOR AN OPEN OR HIGH RESISTANCE
1. Turn the ignition off.
2. Measure the resistance of the (S161) Right Front Acceleration Sensor Return circuit between the Left Front Acceleration Sensor harness connector and the ADCM C1 harness connector.

Is the resistance above 5.0 Ohms?

Yes

- Repair the (S161) Right Front Acceleration Sensor Return circuit for an open or high resistance.
- Perform the ADCM VERIFICATION TEST. Active Damping Control Module (ADCM) Verification Test.

No

- Go To 5

5. ACCELERATION SENSOR
1. Replace the Acceleration Sensor. Active Damping Sensor - Removal.
2. Perform the ADCM VERIFICATION TEST. Active Damping Control Module (ADCM) Verification Test.
3. Turn the ignition on.
4. With the scan tool, erase the DTCs.
5. Start the vehicle.
6. With the scan tool, read the DTCs in the ADCM.

Does the DTC remain active?

Yes

- Replace the Active Damping Control Module (ADCM). Active Damping Control Module - Removal.
- Perform the ADCM VERIFICATION TEST. Active Damping Control Module (ADCM) Verification Test.

No

- Test complete.

6. 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 ADCM VERIFICATION TEST. Active Damping Control Module (ADCM) Verification Test.

No

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