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Home >> Lincoln >> 2009 >> MKX FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2185 (Interior Lighting System) >> Diagnosis And Testing >> Interior Lighting >> Pinpoint Tests >> Pinpoint Test J: An Individual Demand Lamp Is Inoperative >> Pinpoint Test J: An Individual Demand Lamp Is Inoperative

Pinpoint Test J: An Individual Demand Lamp Is Inoperative

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. J1 CHECK FOR VOLTAGE TO THE DEMAND LAMP 
    • Ignition OFF.
    • Disconnect: Inoperative Demand Lamp.
    • Ignition ON.
    • Measure the voltage between the inoperative demand lamp, harness side and ground as follows:
      CONNECTOR-PIN REFERENCE

      Inoperative Lamp Connector-Pin Circuit
      RH vanity mirror C906-1 CLN09 (YE/GN)
      LH vanity mirror C907-1 CLN09 (YE/GN)
      Front interior C930-3 CLN09 (YE/GN)
      Rear interior C923-3 CLN09 (YE/GN)
      Fig 1: Checking Circuit CLN09 For An Open
      G06505618Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to J2  .
    • No:  REPAIR circuit CLN09 (YE/GN) for an open. TEST the system for normal operation.
  2. J2 CHECK FOR VOLTAGE TO THE DEMAND LAMP USING THE CONNECTOR GROUND 
    • Measure the voltage between the inoperative demand lamp, harness side and ground as follows:
      CONNECTOR-PIN REFERENCE

      Inoperative Lamp Connector-Pin/Circuit Connector-Pin/Circuit
      Front interior C930-3 C930-1
      CLN09 (YE/GN) GD133 (BK)
      Rear interior C923-3 C923-2
      CLN09 (YE/GN) GD133 (BK)
      LH vanity mirror C907-1 C907-2
      CLN09 (YE/GN) GD133 (BK)
      RH vanity mirror C906-1 C906-2
      CLN09 (YE/GN) GD133 (BK)
      Fig 2: Checking Circuit GD133 For An Open
      G06505619Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  INSTALL a new interior lamp for the lamp in question. REFER to INTERIOR LAMP . TEST the system for normal operation.
    • No:  REPAIR circuit GD133 (BK) for an open. TEST the system for normal operation.