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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> (Drivetrain Control Module (DTCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U0101-Lost Communication With TCM >> Diagnostic Test

Diagnostic Test

  1. VERIFY THE DTC IS ACTIVE 
    NOTE:

    For vehicle communication problems, use the scan tool to refer to the network review screen. This screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

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

      Is the DTC active at this time?

      Yes 

      No 

      • Refer to  Diagnosis and Testing  and perform the Stored Lost Communication DTCs diagnostic procedure.
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