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HOMESERVICE MANUALSJEEP2014GRAND CHEROKEE LAREDO, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 7 ((ACTIVE DAMPING CONTROL MODULE (ADCM) - ELECTRICAL DIAGNOSTICS - SRT))DTC TROUBLESHOOTINGC15BC-12-LEFT FRONT ACCELERATION SENSOR SUPPLY - CIRCUIT SHORT TO BATTERYDIAGNOSTIC TEST
2014 Jeep Grand Cherokee Laredo, AWD

Diagnostic Test

2014 Jeep Grand Cherokee Laredo, AWDSECTION Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
  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 ADCM.

      Is the DTC active at this time?

      Yes 

      • Go To  2

      No 

      • Go To  5
  2. LEFT FRONT ACCELERATION SENSOR HARNESS CONNECTOR 
    NOTE:

    Make sure the Acceleration Sensor harness connector is connected correctly.

    1. Turn the ignition off.
    2. Inspect the Acceleration Sensor harness connector for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.

      Were any problems found?

      Yes 

      No 

      • Go To  3
  3. CHECK THE (S160) LEFT FRONT ACCELERATION SENSOR POWER CIRCUIT FOR A SHORT TO BATTERY 
    1. Turn the ignition off.
    2. Disconnect the Left Front Acceleration Sensor harness connector.
    3. Disconnect the ADCM C1 harness connector.
    4. Turn the ignition on.
    5. Measure the voltage between ground and the (S160) Left Front Acceleration Sensor Power circuit.

      Is the voltage above 5.25 volts?

      Yes 

      • Repair the (S160) Left Front Acceleration Sensor Power circuit for a short battery.
      • Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  4
  4. ACCELERATION SENSOR 
    1. Replace the Acceleration Sensor in accordance with the Service Information. Refer to SENSOR, ACTIVE DAMPING, REMOVAL .
    2. Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
    3. Turn the ignition on.
    4. With the scan tool, erase the DTCs.
    5. Start the vehicle.
    6. With the scan tool, read the DTCs in the ADCM.

      Does the DTC remain active?

      Yes 

      No 

      • Test complete.
  5. 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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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.