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Home >> Lincoln >> 2009 >> MKS FWD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrument Cluster Illumination & Instrument Panel Illumination >> Diagnosis And Testing >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test G: The Individual Component Illumination is Inoperative >> Pinpoint Test H: The Individual Component Illumination Is Inoperative

Pinpoint Test H: The Individual Component Illumination Is Inoperative

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. H1 CHECK THE VOLTAGE TO THE SINGLE ILLUMINATION SOURCE 
    NOTE: If the headlamp switch illumination is the inoperative source, unplug the headlamp switch connector to measure the illumination circuit voltage. Unplugging the connector causes the SJB  to turn the exterior lights on by default for 10 minutes, so it is unnecessary to turn on the headlamp switch.
    • Ignition OFF.
    • Disconnect: Inoperative Illumination Source.
    • Place the headlamp switch to the PARKING LAMPS ON position.
    • Rotate the instrument panel dimmer switch to the full illumination position.
    • Measure the voltage between the inoperative illumination source, harness side and ground as follows:
      CONNECTOR TERMINALS PIN REFERENCE CHART

      Component Connector-Pin Circuit
      Floor shifter C3245-4 VLN37 (BU/WH)
      Headlamp switch C205-2 VLN37 (BU/WH)
      Luggage compartment lid release switch C2269-3 VLN37 (BU/WH)
      Rear sun shade switch C3196-3 VLN37 (BU/WH)
      LR heated seat switch C320-5 VLN37 (BU/WH)
      RR heated seat switch C321-5 VLN37 (BU/WH)
      Start/stop switch C2195-5 VLN37 (BU/WH)
    • Is the voltage greater than 10 volts? 

    Result/Action to Take 

    • Yes:  TURN the parking lamps off. GO to H2.
    • No:  REPAIR circuit VLN37 (BU/WH). TEST the system for normal operation.
  2. H2 CHECK THE GROUND CIRCUIT TO THE SINGLE ILLUMINATION SOURCE FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: Battery Negative Cable.
    • Measure the resistance between the inoperative illumination source, harness side and ground according to the following table:
      CONNECTOR TERMINALS PIN REFERENCE CHART

      Illumination Source Connector-Pin Circuit
      Floor shifter C3245-5 GD114 (BK/BU)
      Headlamp switch C205-1 GD116 (BK/VT)
      Luggage compartment lid release switch C2269-2 GD116 (BK/VT)
      Rear sun shade switch C3196-2 GD114 (BK/BU)
      LR heated seat switch C320-1 GD114 (BK/BU)
      RR heated seat switch C321-1 GD114 (BK/BU)
      Start/stop switch C2195-1 RPK35 (GY/YE)
    • Is the resistance less than 5 ohms? 
    • Yes:  INSTALL a new component in question. TEST the system for normal operation.
    • No:  REPAIR the ground circuit in question. TEST the system for normal operation.