Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

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 ASCM.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Go To 6
AIR SUSPENSION INTAKE HOSE
1. Turn the ignition off.
2. Remove the Air Suspension Intake Hose.
  NOTE:
  Make sure all doors and liftgate are closed.
3. Start the vehicle.
4. With the scan tool, read the DTCs in the ASCM.
  Does the DTC remain active?
  
  Yes
  - Go To 3
  No
  - Replace or Repair the Air Suspension Intake hose in accordance with the Service Information. Refer to HOSE ASSEMBLY, AIR SUSPENSION, REMOVAL .
  - Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
AIR SUSPENSION RESERVOIR AIR LINE
1. Raise the vehicle to the highest ride height possible.
2. With the scan tool, under "Miscellaneous Functions" run the "System Pressure Measurement" routine.
3. Record the pressure in the reservoir.
4. Wait 30 minutes and rerun the "System Pressure Measurement" routine.
  Did the reservoir's pressure decrease by more than 1 bar (14.5 psi)?
  
  Yes
  - Repair or Replace the Air Suspension Line in accordance with the Service Information. Refer to AIR LINE, STANDARD PROCEDURE or refer to AIR LINE, REMOVAL .
  - Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
AIR SUSPENSION SOLENOID ASSEMBLY
NOTE:
If any DTCs related to the Ambience Valve are present, repair them first before continuing with this diagnostic procedure.
1. Turn the ignition off.
2. Replace the Air Suspension Solenoid Assembly in accordance with the Service Information. Refer to VALVE BLOCK, COMPRESSOR ASSEMBLY, REMOVAL . Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  NOTE:
  Make sure all doors and liftgate are closed.
3. Start the vehicle.
4. With the scan tool, read the DTCs in the ASCM.
  Does the DTC remain active?
  
  Yes
  - Go To 5
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.
AIR SUSPENSION COMPRESSOR ASSEMBLY
NOTE:
If any DTCs related to the Reversing Valves are present, repair them first before continuing with this diagnostic procedure.
1. Turn the ignition off.
2. Replace the Air Suspension Compressor Assembly in accordance with the Service Information. Refer to COMPRESSOR ASSEMBLY, AIR SUSPENSION, REMOVAL . Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  NOTE:
  Make sure all doors and liftgate are closed.
3. Start the vehicle.
4. With the scan tool, read the DTCs in the ASCM.
  Does the DTC remain active?
  
  Yes
  - Replace the Air Suspension Control Module (ASCM) in accordance with the Service Information. Refer to MODULE, AIR SUSPENSION CONTROL, REMOVAL .
  - Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.
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. Refer to STANDARD PROCEDURE .
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.