Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read ADCM DTCs and record on the repair order.
3. With the scan tool, erase DTCs.
4. Start the Engine.
5. With the scan tool, read ADCM DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Go To 6
REAR 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. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (S166) REAR ACCELERATION SENSOR POWER CIRCUIT FOR A SHORT TO GROUND
1. Disconnect the Acceleration Sensor harness connector.
2. Disconnect the ADCM C1 harness connector.
3. Check for continuity between ground and the (S166) Rear Acceleration Sensor Power circuit at the ADCM C2 harness connector.
  Is there continuity between ground and the (S166) Rear Acceleration Sensor Power circuit?
  
  Yes
  - Go To 4
  No
  - Repair the (S166) Rear Acceleration Sensor Power circuit for a short ground.
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (S166) REAR ACCELERATION SENSOR POWER CIRCUIT FOR A SHORT TO THE (S167) REAR ACCELERATION SENSOR RETURN
1. Measure the resistance between the (S166) Rear Acceleration Sensor Power circuit and the (S167) Rear Acceleration Sensor Return circuit.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Go To 5
  No
  - Repair the (S166) Rear Acceleration Sensor Power circuit for a short to the (S167) Rear Acceleration Sensor Return circuit.
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
ACCELERATION SENSOR
1. Replace the Acceleration Sensor in accordance with the Service Information. Refer to SENSOR, ACTIVE DAMPING, REMOVAL .
2. Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
3. Turn the ignition on.
4. With the scan tool, erase the DTCs.
5. Start the Engine.
6. With the scan tool, read ADCM DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Active Damping Control Module (ADCM) in accordance with the Service Information. Refer to MODULE, ACTIVE DAMPING CONTROL (ADCM), REMOVAL .
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test complete.
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. Refer to STANDARD PROCEDURE .
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.