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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 275 ((Air Suspension Control Module (ASCM) - Electrical Diagnostics - 1500)) >> Diagnosis And Testing >> C1526-11-Left Rear Ride Height Sensor - Circuit Short To Ground >> Diagnostic Test

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.
  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 ASCM.

      Is the DTC active at this time?

      Yes 

      • Go To  2

      No 

      • Go To  4
  2. (S148) LR HEIGHT SENSOR SIGNAL SHORTED TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the ASCM C2 harness connector
    3. Disconnect the Left Rear Ride Height Sensor harness connector
    4. Measure the resistance between ground and the (S148) LR Height Sensor Signal circuit.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Repair the (S148) LR Height Sensor Signal circuit for a short to ground.
      • Perform the ASCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  3
  3. LEFT REAR RIDE HEIGHT SENSOR 
    1. Replace the Left Rear Ride Height Sensor in accordance with the Service Information. Refer to SENSOR, HEIGHT, REMOVAL .
    2. With the scan tool, erase the DTCs in the ASCM.
    3. 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 reset.

      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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