Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. 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 5
DOWN AIR SUSPENSION SWITCH IN THE PRESSED POSITION
1. Turn the ignition off.
2. Inspect the DOWN Air Suspension switch for foreign material which could keep it from returning back to the not pushed state.
3. Turn the ignition on.
4. Using the scan tool, monitor the DOWN Air Suspension Switch status in the ASCM while pressing and releasing the switch.
  Does the DOWN Air Suspension Switch function correctly?
  
  Yes
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.
  No
  - Go To 3
AIR SUSPENSION SWITCH
1. Turn the ignition off.
2. Replace the Air Suspension Switch in accordance with the Service Information. Refer to POD, SWITCH, REMOVAL . Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
3. Turn the ignition on.
4. With the scan tool, record and erase DTCs.
5. With the scan tool, read ASCM DTCs.
  Does the DTC remain active?
  
  Yes
  - Go To 4
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time.
INSTRUMENT CLUSTER
1. Turn the ignition off.
2. Replace the Instrument Cluster in accordance with the Service Information. Refer to REMOVAL .
3. Turn the ignition on.
4. With the scan tool, record and erase DTCs.
5. 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.