LEMON Manuals: Even more car manuals for everyone
Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 721 (Exterior Lighting System) >> Diagnostic Tests >> Fog Lamps >> Pinpoint Tests >> Pinpoint Test S: The Fog Lamps Are On Continuously >> Pinpoint Test S: The Fog Lamps Are On Continuously

Pinpoint Test S: The Fog Lamps Are On Continuously

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. S1 CHECK THE HEADLAMP SWITCH 
    • Disconnect: Headlamp Switch C2150a
    • Do the fog lamps continue to illuminate? 
    1. YES  : Go to  S2.
    2. NO  : INSTALL a new headlamp switch. REFER to Headlamp Switch  in this article. TEST the system for normal operation.
  2. S2 CHECK CIRCUIT 188 (WH/BK) FOR A SHORT TO VOLTAGE 
    • Disconnect: CJB C270h
    • Do the fog lamps continue to illuminate? 
    1. YES  : Go to  S3.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. S3 CHECK THE CJB 
    • Disconnect: Fog Lamp Relay
    • Do the fog lamps continue to illuminate? 
    1. YES  : Go to  S5.
    2. NO  : Go to  S4.
  4. S4 CHECK THE FOG LAMP RELAY 
    • Carry out the fog lamp relay component test. Refer to COMPONENT TESTING.
    • Is the fog lamp relay OK? 
    1. YES  : REPAIR or INSTALL a new CJB. TEST the system for normal operation.
    2. NO  : INSTALL a new fog lamp relay. TEST the system for normal operation.
  5. S5 CHECK CIRCUIT 478 (TN/OG) FOR A SHORT TO VOLTAGE 
    • Disconnect: CJB C270a
    • Do the fog lamps continue to illuminate? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : REPAIR or INSTALL a new CJB. TEST the system for normal operation.
scientia non olet · About LEMON Manuals