Diagnostic Test

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 the 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
CHECK THE (S170) LEFT FRONT DAMPER VALVE POWER SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the ADCM C1 harness connector.
3. Disconnect the ADCM C2 harness connector.
4. Disconnect the Left Front Damper Valve harness connector.
5. Turn the ignition on.
6. Measure the voltage of the (S170) Left Front Damper Valve Power Supply circuit at the ADCM C2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (S170) Left Front Damper Valve Power Supply circuit for a short to voltage.
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (S171) RIGHT FRONT DAMPER VALVE POWER SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the Right Front Damper Valve harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (S171) Right Front Damper Valve Power Supply circuit at the ADCM C2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (S171) Right Front Damper Valve Power Supply circuit for a short to voltage.
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
CHECK THE (S172) LEFT REAR DAMPER VALVE POWER SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the Left Rear Damper Valve harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (S172) Left Rear Damper Valve Power Supply circuit at the ADCM C1 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (S172) Left Rear Damper Valve Power Supply circuit for a short to voltage.
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 5
CHECK THE (S173) RIGHT REAR DAMPER VALVE POWER SUPPLY CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Right Rear Damper Valve harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (S173) Right Rear Damper Valve Power Supply circuit at the ADCM C2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (S173) Right Rear Damper Valve Power Supply circuit for a short to voltage.
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Active Damping Control Module (ADCM) at accordance with the Service formation. Refer to MODULE, ACTIVE DAMPING CONTROL (ADCM), REMOVAL .
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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.