LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 722 (Exterior Lighting System) >> Diagnostic Tests >> Headlamps >> Pinpoint Tests >> Pinpoint Test A: Both Headlamps Are Inoperative >> Pinpoint Test A: Both Headlamps Are Inoperative

Pinpoint Test A: Both Headlamps 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. A1 CHECK THE HIGH BEAMS 
    • Place the headlamp switch in the HEADLAMPS ON position.
    • Place the multifunction switch in the HIGH BEAM position.
    • Do the high beams illuminate? 
    1. YES  : Go to Pinpoint Test B .
    2. NO  : Go to  A2.
  2. A2 CHECK FOR VOLTAGE TO THE HEADLAMP SWITCH 
    • Key in OFF position.
    • Disconnect: Headlamp Switch C2150a
    • Measure the voltage between the headlamp switch C2150a-6, circuit 196 (DB/OG), harness side and ground.
      • Fig 1: Checking For Voltage To Headlamp Switch
      GF0004575Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A4.
    2. NO  : VERIFY the CJB fuse 40 (20A) is OK. If OK, go to  A3 .
  3. A3 CHECK CIRCUIT 196 (DB/OG) FOR AN OPEN 
    • Disconnect: CJB C270h
    • Measure the voltage between the CJB C270h pin 10, circuit 196 (DB/OG), component side and ground.
      • Fig 2: Checking Circuit 196 (DB/OG) For Open
      GF0004576Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : REPAIR or INSTALL a new CJB. TEST the system for normal operation.
  4. A4 CHECK FOR VOLTAGE TO THE MULTIFUNCTION SWITCH 
    • Connect: Headlamp Switch C2150a
    • Disconnect: Multifunction Switch C202b
    • Place the headlamp switch in the HEADLAMPS ON position.
    • Measure the voltage between the multifunction switch C202b-7, circuit 15 (RD/YE), harness side and ground.
      • Fig 3: Checking For Voltage To Multifunction Switch
      GF0004577Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES article. TEST the system for normal operation.
    2. NO  : Go to  A5.
  5. A5 CHECK CIRCUIT 15 (RD/YE) FOR AN OPEN 
    • Disconnect: Headlamp Switch C2150a
    • Carry out the headlamp switch component test. Refer to COMPONENT TESTING.
    • Is the headlamp switch OK? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : INSTALL a new headlamp switch. REFER to Headlamp Switch  in this article. TEST the system for normal operation.
scientia non olet · About LEMON Manuals