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Home >> Chrysler >> 2007 >> PT Cruiser Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P150D To UO168, Pre-Diagnostic Troubleshooting Procedure >> U0121-Lost Communication With Anti-Lock Brake Module >> Diagnostic Test

Diagnostic Test

  1. 1) ACTIVE DTC 

    Ignition on, engine not running.

    With a scan tool, select View DTCs.

    Is the status Active for this DTC? 

    Yes 

    1. Refer to DIAGNOSIS AND TESTING for diagnostic procedures and for further possible causes.

    No 

    1. Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. Refer to INTERMITTENT CONDITION .
    2. Perform POWERTRAIN VERIFICATION TEST Ver. 1.
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