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Pinpoint Test K: The Hazard Flasher Lamps Are Never On

  1. K1 CHECK THE VOLTAGE TO THE ELECTRONIC FLASHER 
    • Disconnect: Electronic Flasher C2141.
    • Measure the voltage between electronic flasher C2141 Pin 3, Circuit 383 (RD/WH), harness side and ground.
      Fig 1: Checking Voltage To Electronic Flasher
      G03242672Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. Yes:  GO to K2.
    2. No:  REPAIR the circuit. TEST the system for normal operation.
  2. K2 CHECK CIRCUIT 385 (WH/RD) 
    • Disconnect: Multifunction Switch C202b.
    • Measure the resistance between multifunction switch C202b Pin 385, Circuit 385 (WH/RD), harness side and electronic flasher C2141 Pin 4, Circuit 385 (WH/RD), harness side; and between multifunction switch C202b Pin 385, Circuit 385 (WH/RD), harness side and ground.
      Fig 2: Checking Circuit 385 (WH/RD)
      G03242673Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the multifunction switch and the electronic flasher, and greater than 10,000 ohms between the multifunction switch and ground? 
    1. Yes:  GO to K3.
    2. No:  REPAIR the circuit. TEST the system for normal operation.
  3. K3 CHECK THE CONTINUITY OF THE MULTIFUNCTION SWITCH 
    • Carry out the multifunction switch component test.

      Refer to COMPONENT TESTING for schematic and connector information.

    • Is the switch OK? 
    1. Yes:  INSTALL a new electronic flasher. TEST the system for normal operation.
    2. No:  INSTALL a new multifunction switch; REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.
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