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Home >> Jeep >> 2010 >> Commander Limited, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> B1661-Front Fog Lamp Control Circuit Open >> Diagnostic Test
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Diagnostic Test

  1. INTEGRATED POWER MODULE 
    NOTE: Prior to testing, check and inspect that all applicable fuses are functional and working properly.
    1. Turn the ignition off.
    2. Replace the Fog Lamp relay with and known good relay.
    3. Using the scan tool, clear all IPM DTCs.
    4. Turn the Fog Lamps ON then OFF.
    5. Using the scan tool, read the DTCs.

      Does the scan tool read: B1661-FRONT FOG LAMP CONTROL CIRCUIT OPEN?

      Yes 

      No