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Home >> Jeep >> 2012 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 259 ((Drivetrain Control Module (DTCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0402-Implausible Data Received From TCM >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2012 Dodge Charger. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTC IS ACTIVE 
    NOTE:

    Diagnose all CAN B and C communication DTCs before continuing.

    1. Ignition on, engine not running.
    2. With the scan tool, read DTCs.

      Is the status Active for this DTC?

      Yes 

      • Go To  2.

      No 

      • Go To  3.
  2. CHECK FOR TCM DTCS 
    1. Ignition on, engine not running.
    2. With the scan tool, read the DTCs in the TCM.

      Are there any TCM DTCs present?

      Yes 

      No 

  3. INTERMITTENT WIRING HARNESS AND CONNECTORS 
    1. The conditions necessary to set this DTC are not present at this time.
    2. Using the wiring diagram/schematic as a guide, inspect the wiring harness and connectors.
    3. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit.
    4. Look for the data to change or for the DTC to reset during the wiggle test.

      Were any problems found?

      Yes 

      No 

      • Test complete.