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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 ((Drivetrain Control Module (DTCM) - Electrical Diagnostics - 1500, 2500 & 3500)) >> Diagnosis and Testing >> U0100-Lost Communication With The ECM/Pcm >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. ACTIVE DTC 
    1. Ignition on, engine not running.
    2. With the scan tool, select view DTCs.

      Is the DTC Active at this time?

      Yes 

      • Refer to appropriate Electrical Diagnostics Information .  and perform the U0100-Lost Communication with ECM/PCM diagnostic procedure.

      No 

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