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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 902 ((Front Air Suspension Control Module (ASCM) - Electrical Diagnostics - 2500 Hd & 3500 Hd)) >> Diagnosis And Testing >> C15DD-11-Air Suspension Reservoir Solenoid - Circuit Short To Ground >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. VERIFY THE DTC IS ACTIVE 
    1. Perform any Technical Service Bulletins (TSBs) that may apply.
    2. Turn the ignition on.
    3. With the scan tool, record and erase DTCs.
    4. Cycle the ignition switch from off to on.
    5. With the scan tool, read DTCs.

      Is the DTC active at this time?

      Yes 

      • Go To  2

      No 

      • Go To  4
  2. (Y35) AIR TANK ENABLED SOLENOID CIRCUIT SHORTED TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the ASCM C2 harness connector.
    3. Disconnect the Air Suspension C1 harness connector.
    4. Measure the resistance between ground and the (Y35) Air Tank Enabled Solenoid circuit.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Repair the (Y35) Air Tank Enabled Solenoid circuit for a short to ground.
      • Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  3
  3. AIR SUSPENSION CONTROL MODULE (ASCM) 
    1. Replace the Air Suspension Control Module (ASCM) in accordance with the Service Information. Refer to MODULE, AIR SUSPENSION CONTROL, REMOVAL .
    2. With the scan tool, erase the DTCs in the ASCM.
    3. Cycle the ignition switch from off to on.
    4. With the scan tool, read the DTCs in the ASCM.

      Does the DTC remain active?

      Yes 

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time.
  4. 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 become active.

      Were any problems found?

      Yes 

      No 

      • Test complete, the condition or conditions that originally set this DTC are not present at this time.
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