Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSJEEP2014GRAND CHEROKEE LAREDO, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 7 ((ACTIVE DAMPING CONTROL MODULE (ADCM) - ELECTRICAL DIAGNOSTICS - SRT))DTC TROUBLESHOOTINGU0429-00-IMPLAUSIBLE DATA RECEIVED FROM SCMDIAGNOSTIC 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.

VERIFY THE DTC IS ACTIVE
NOTE:
This DTC must be active for the results of this test to be valid.
1. Perform any Technical Service Bulletins (TSBs) that may apply.
2. Turn the ignition on.
3. With the scan tool, record and erase the DTCs.
4. Cycle the ignition switch from off to on.
5. With the scan tool, read the DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Go To 4
CHECK FOR STEERING COLUMN MODULE (SCM) DTCS PRESENT
1. With the scan tool, read the DTCs.
  Are there any SCCM DTCs present?
  
  Yes
  - Perform the appropriate diagnostic procedures. Refer to DIAGNOSIS AND TESTING .
  No
  - Go To 3
CHECK FOR BODY CONTROL (BCM) CAN BUS DTCS PRESENT
1. With the scan tool, read the BCM DTCs.
  Are there any BCM CAN BUS DTCs present?
  
  Yes
  - Perform the appropriate diagnostic procedures. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Using the schematics as a guide, check the Active Damping Control Module (ADCM) pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Active Damping Control Module (ADCM) in accordance with the Service Information. Refer to MODULE, ACTIVE DAMPING CONTROL, REMOVAL .
  - Perform the ADCM 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 ADCM VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  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.