C212C-12

C212C-12-SUSPENSION VALVE POWER SUPPLY VOLTAGE - 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:
When the Active Damping Control Module (ADCM) detects that too much current is being used when the on-board 12 volt power supply is turned on.





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. 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. Active Damping Control Module (ADCM) Verification Test.

No

- Go To 3

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. Active Damping Control Module (ADCM) Verification Test.

No

- Go To 4

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. Active Damping Control Module (ADCM) Verification Test.

No

- Go To 5

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. Active Damping Control Module (ADCM) Verification Test.

No

- Replace the Active Damping Control Module (ADCM) at accordance with the Service formation. Active Damping Control Module - Removal.
- Perform the ADCM VERIFICATION TEST. Active Damping Control Module (ADCM) Verification Test.

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.