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Home >> Chrysler >> 2007 >> PT Cruiser Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> DTCS B2102 To U0121 >> B2102-Ignition Run/Start Input Circuit High >> Diagnostic Test

Diagnostic Test

  1. 1) VERIFY THAT DTC B2102-IGNITION RUN/START INPUT CIRCUIT HIGH IS ACTIVE 
    NOTE: Ensure the battery is fully charged.

    Turn the ignition on.

    With the scan tool, read Occupant Classification Module (OCM) DTCs.

    Does the scan tool display active: B2102-IGNITION RUN/START INPUT CIRCUIT HIGH? 

    Yes 

    1. Go to  2).

    No 

    1. Go to  3).
  2. 2) CHECK FOR CHARGING SYSTEM RELATED DTCs IN THE POWERTRAIN CONTROL MODULE (PCM) 

    With the scan tool in ECU View, select PCM and check for any Charging System related DTCs.

    Does the scan tool display any Charging System related DTCs? 

    Yes 

    1. Diagnose and repair the DTCs. Refer to appropriate Engine ELECTRICAL DIAGNOSTICS article.

    No 

    1. Replace the OCM in accordance with the Service Information.
    2. Perform *OCM SYSTEM VERIFICATION TEST .
  3. 3) TEST FOR INTERMITTENT CONDITION 

    With the scan tool, record and erase all DTCs from all Airbag modules.

    If any ACTIVE codes are present they must be resolved before diagnosing any stored codes.

    Does the scan tool display any ACTIVE DTCs? 

    Yes 

    1. Select appropriate symptom from Symptom List.

    No  

    1. No problem found. Erase all codes before returning vehicle to customer.
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