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 COMPRESSOR ASSEMBLY HARNESS CONNECTOR
NOTE:
Make sure the Air Suspension Compressor Assembly harness connector is connected correctly.
1. Turn the ignition off.
2. Inspect the Air Suspension Compressor Assembly 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 ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
(Y47) 12 VOLT REVERSE VALVE SUPPLY OPEN OR HIGH RESISTANCE

Fig 1: Checking 12 Volt Reverse Valve Supply For Open Or High Resistance
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the Air Suspension Solenoid Assembly harness connector.
2. Disconnect the ASCM C2 harness connector
3. Measure the resistance of the (Y47) 12 Volt Reverse Supply circuit between the ASCM C2 harness connector and the Air Suspension Solenoid Assembly harness connector.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (Y47) 12 Volt reverse Supply circuit for an open or high resistance.
  - Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
(Y49) REVERSE VALVE CONTROL 2 OPEN OR HIGH RESISTANCE

Fig 2: Checking 12 Volt Reverse Valve Control 2 For Open Or High Resistance
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance of the (Y49) Reverse Valve Control 2 circuit between the ASCM C2 harness connector and the Air Suspension Solenoid Assembly harness connector.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the (Y49) Reverse Valve Control 2 circuit for an open or high resistance.
  - Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 5
AIR SUSPENSION COMPRESSOR ASSEMBLY

Fig 3: Checking Air Suspension Compressor Assembly
Courtesy of CHRYSLER GROUP, LLC
1. Connect the Air Suspension Compressor Assembly harness connector.
2. Measure the resistance between the (Y47) 12 Volt reverse Supply circuit and the (Y49) 12 Volt Reverse Valve Control 2 circuit at the ASCM C2 harness connector.
  Is the resistance above 10.0 Ohms?
  
  Yes
  - 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 .
  No
  - 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 .
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.