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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 >> U0100-Lost Communication With The ECM/Pcm >> Diagnostic Test

Diagnostic Test

  1. VERIFY THE DTC IS ACTIVE 
    1. Ignition on, engine not running.
    2. With the scan tool, read the DTCs.

      Is the DTC Active at this time?

      Yes 

      • Refer to  DIAGNOSIS AND TESTING  and perform the U0100-Lost Communication with ECM/PCM diagnostic procedure.

      No 

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