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Home >> Jeep >> 2007 >> Commander Overland, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P3400 To U1403 >> U0141-Lost Communication With Front Control Module >> Diagnostic Test

Diagnostic Test

  1. 1) ACTIVE DTC 

    Ignition on, engine not running.

    With a scan tool, select View PCM DTCs.

    Is the DTC Active at this time? 

    Yes 

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

    No 

    1. Refer to INTERMITTENT CONDITION Diagnostic Procedure.
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