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Home >> Chrysler >> 2011 >> 300 Base, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (5.7L - DTCS P2314 To U1431) >> Diagnosis and Testing >> U0121-Lost Communication With Abs >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. ACTIVE DTC 
    NOTE:

    For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The 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 the scan tool, select view DTCs.

      Is the DTC Active at this time?

      Yes 

      • Refer to  DIAGNOSIS AND TESTING  and perform the U0121-00-Lost Communication with Anti-Lock Brake Module diagnostic procedure.

      No 

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