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Pinpoint Test C: The High Beams Are Inoperative

  1. C1 CHECK THE CIRCUIT 12 (LG/BK) 
    • Disconnect: LH Headlamp C1021.
    • Measure the resistance between LH headlamp C1021 Pin 2, Circuit 12 (LG/BK), harness side and CJB Fuse 38 (20A).
      Fig 1: Checking Circuit 12 (LG/BK)
      G03242655Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes:  RECONNECT the LH headlamp (13008). GO to C2.
    2. No:  REPAIR the circuit. TEST the system for normal operation.
  2. C2 CHECK THE VOLTAGE TO CJB FUSE 38 (20A) 
    • Place the headlamp switch in the ON position.
    • Place the multifunction switch in the high beam position.
    • Measure the voltage between CJB Fuse 38 (20A) and ground.
      Fig 2: Checking Voltage To CJB Fuse 38 (20A)
      G03242656Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. Yes:  Go To PINPOINT TEST E: ONE HIGH BEAM HEADLAMP IS INOPERATIVE .
    2. No:  GO to C3.
  3. C3 CHECK CIRCUIT 632 (GY/OG) FOR OPEN 
    • Disconnect: Multifunction Switch C202a.
    • Measure the resistance between the CJB Fuse 38 (20A), and multifunction switch C202a Pin 12, Circuit 632 (GY/OG), harness side.
      Fig 3: Checking Circuit 632 (GY/OG) For Open
      G03242657Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes:  INSTALL a new multifunction switch; REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.
    2. No:  REPAIR the circuit. TEST the system for normal operation.
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