Pinpoint Test B: The Low Beams Are Inoperative

B1 CHECK THE VOLTAGE TO CJB FUSE 4 (7.5A) AND CJB FUSE 10 (7.5A)
- Key in OFF position.
- Place the multifunction switch in the low beam position.
- Remove Fuse 4 (7.5A) and Fuse 10 (7.5A) from the CJB.
- Place the headlamp switch in the ON position.
- Measure the voltage between the following CJB fuse terminals and ground:
  - Fuse 4 connector.
  - Fuse 10 connector.
    
    Fig 1: Checking Voltage To CJB Fuse 4 (7.5A) And CJB Fuse 10 (7.5A)
    Courtesy of FORD MOTOR CO.
- Are the voltages greater than 10 volts?
1. Yes: Go To PINPOINT TEST D: ONE LOW BEAM HEADLAMP IS INOPERATIVE .
2. No: GO to B2.
B2 CHECK CIRCUIT 13 (RD/BK) FOR OPEN
- Disconnect: Multifunction Switch C202a.
- Measure the resistance between multifunction switch C202a Pin 13, Circuit 13 (RD/BK), harness side and CJB Fuse 4 and Fuse 10.
  
  Fig 2: Checking Circuit 13 (RD/BK) For Open
  Courtesy of FORD MOTOR CO.
- Are the resistances 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.