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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1299 (2.4L - DTCS P2245 To U1504) >> DTC Troubleshooting >> U0402-Implausible Data Received From TCM >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR OTHER DTCS 
    1. Turn the ignition on.
    2. With a scan tool, read and record DTCs and freeze frame data on the repair order.
      NOTE:

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

      Are there any CAN B or CAN C communication DTCs active or pending?

      Yes 

      No 

      • Go To  2
  2. CHECK THE PCM FOR FLASH UPDATES OR SERVICE BULLETINS 
    1. 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 DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION DIAGNOSTIC PROCEDURE .
        NOTE:

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