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Home >> Dodge and Ram >> 2015 >> Durango SXT, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 192 (3.6L - DTCS P2AF8 To U1504) >> DTC Troubleshooting >> U0402-Implausible Data Received From TCM >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE PCM FOR FLASH UPDATES OR SERVICE BULLETINS 

NOTE:

Diagnose all CAN B and C communication DTCs before continuing.

  1. Turn the ignition on.
  2. With a scan tool, read and record freeze frame data on the repair order.
    NOTE:

    This information is important and will be necessary for future reference.

  3. Perform any Service Bulletins or flash updates  that may apply for the PCM or TCM.

    Were there any Service Bulletins or flash updates that repaired the issue?

    Yes 

    No 

    • Perform the COMMUNICATION PRE-DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION PRE-DIAGNOSTIC PROCEDURE .
      NOTE:

      Treat this DTC as an IMPLAUSIBLE SIGNAL  DTC when performing the COMMUNICATION PRE-DIAGNOSTIC PROCEDURE.