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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1831 (Exterior Lighting System) >> Diagnostic Tests >> Headlamps >> Pinpoint Tests >> Pinpoint Test C: The High Beams Are Inoperative >> Pinpoint Test C: The High Beams Are Inoperative

Pinpoint Test C: The High Beams Are Inoperative

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. C1 CHECK THE HIGH BEAM RELAY 
    • Key in OFF position.
    • Disconnect: High Beam Relay
    • Carry out the high beam relay component test. Refer to COMPONENT TESTING.
    • Is the high beam relay OK? 
    1. YES  : Go to  C2.
    2. NO  : INSTALL a new high beam relay. TEST the system for normal operation.
  2. C2 CHECK THE VOLTAGE TO THE CJB 
    • Disconnect: CJB C270h
    • Place the headlamp switch in the HEADLAMPS ON position.
    • Place the multifunction switch in the HIGH BEAM position.
    • Measure the voltage between the CJB C270h-2, circuit 275 (YE), harness side and ground.
      • Fig 1: Checking Voltage To CJB
      GF0004579Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : TURN the headlamp switch off. Go to  C4 .
    2. NO  : TURN the headlamp switch off. Go to  C3 .
  3. C3 CHECK THE MULTIFUNCTION SWITCH 
    • Disconnect: Multifunction Switch C202b
    • Carry out the multifunction switch component test. Refer to COMPONENT TESTING.
    • Is the multifunction switch OK? 
    1. YES  : REPAIR circuit 275 (YE). TEST the system for normal operation.
    2. NO  : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES article. TEST the system for normal operation.
  4. C4 CHECK THE VOLTAGE TO THE HIGH BEAM RELAY 
    • Connect: CJB C270h
      • NOTE: Make sure the multifunction switch is in the HIGH BEAM position.
    • Place the headlamp switch in the HEADLAMPS ON position.
    • Measure the voltage between the high beam relay pin 86, circuit 275 (YE), harness side and ground; and between the high beam relay pin 30, circuit 1113 (YE/LG), harness side and ground.
      • Fig 2: Checking Voltage To High Beam Relay
      GF0004580Courtesy of FORD MOTOR CO.
    • Are the voltages greater than 10 volts? 
    1. YES  : TURN the headlamp switch off. Go to  C5.
    2. NO  : REPAIR or INSTALL a new CJB. TEST the system for normal operation.
  5. C5 CHECK THE HIGH BEAM RELAY OUTPUT 
    • Connect a fused (20A) jumper wire between the high beam relay pin 30, circuit 1113 (YE/LG), harness side and the high beam relay pin 87, circuit 12 (LG/BK), harness side.
      • Fig 3: Checking High Beam Relay Output
      GF0004581Courtesy of FORD MOTOR CO.
    • Do the high beams illuminate? 
    1. YES  : REPAIR or INSTALL a new CJB. TEST the system for normal operation.
    2. NO  : LEAVE the jumper wire connected. Go to  C6 .
  6. C6 CHECK CIRCUIT 12 (LG/BK) FOR AN OPEN 
    • Disconnect: CJB C270a
    • Measure the voltage between the CJB C270a pin 6, circuit 12 (LG/BK), component side and ground.
      • Fig 4: Checking Circuit 12 (LG/BK) For An Open
      GF0004582Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : VERIFY the CJB fuse 35 (20A) is OK. If OK, REPAIR or INSTALL a new CJB. TEST the system for normal operation.
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