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Pinpoint Test M: The LH Turn Indicator Is Never/Always On: Testing

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
  1. M1 CHECK THE LH TURN SIGNAL LAMPS 
    • Key in ON position.
    • Operate the LH turn signal. Observe the exterior LH turn lamps.
    • Do the LH turn lamps operate correctly? 
    • Yes  : GO to M2.
    • No  : REFER to EXTERIOR LIGHTING to continue diagnosis of the turn lamps.
  2. M2 CARRY OUT THE INSTRUMENT CLUSTER WARNING LAMPS AND CHIME ACTIVE COMMAND USING THE DIAGNOSTIC TOOL 
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: Instrument Cluster Active Command.
    • Select the instrument cluster warning lamps and chime active command. Trigger the all lamps active command on and off. Observe the LH turn signal indicator.
    • Does the LH turn signal indicator illuminate when triggered on and turn off when triggered off? 
    • Yes  : GO to  M4.
    • No  : GO to M3.
  3. M3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION 
    • Disconnect the instrument cluster connector.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect the instrument cluster connector and make sure it seats correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
    • No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
  4. M4 CHECK FOR CORRECT SJB OPERATION 
    • Disconnect all the SJB connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all the SJB connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
    • No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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