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Home >> Jeep >> 2010 >> Commander Limited, 4WD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> B1660-Front Fog Lamp Control Circuit High >> Diagnostic Test
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Diagnostic Test

  1. INTEGRATED POWER MODULE 
    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: B1660-FRONT FOG LAMP CONTROL CIRCUIT HIGH?

      Yes 

      No