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Home >> Ford >> 2002 >> Taurus SES, 3.0 S >> Repair and Diagnosis >> External Pages >> Different car >> Section 2097 (Exterior Lighting System) >> Diagnostic Tests >> Daytime Running Lamps (DRL) >> Pinpoint Tests >> Pinpoint Test Z: The Daytime Running Lamps Are Inoperative >> Pinpoint Test Z: The Daytime Running Lamps Are Inoperative

Pinpoint Test Z: The Daytime Running Lamps 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. Z1 CHECK THE REVERSING LAMP OPERATION 
    NOTE: Verify the parking brake control is engaged for this step.
    • Apply the parking brake.
    • Key in ON position.
    • Monitor the reversing lamps while placing the transmission in REVERSE (R) and then into PARK (P).
    • Do the reversing lamps operate correctly? 
    1. YES  : Go to  Z2.
    2. NO  : REFER to Reversing Lamps  in this article.
  2. Z2 CHECK THE DAYTIME RUNNING LAMPS (DRL) ENABLE RELAY 
    • Key in OFF position.
    • Disconnect: DRL Enable Relay
    • Carry out the DRL enable relay component test. Refer to COMPONENT TESTING.
    • Is the DRL enable relay OK? 
    1. YES  : Go to  Z3.
    2. NO  : INSTALL a new DRL enable relay. TEST the system for normal operation.
  3. Z3 CHECK VOLTAGE TO THE DRL ENABLE RELAY 
    • Measure the voltage between the DRL enable relay pin 3, circuit 2017 (WH/RD), harness side and ground.
      • Fig 1: Checking Voltage To DRL Enable Relay
      GF0004653Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  Z5.
    2. NO  : VERIFY the CJB fuse 40 (20A) is OK. If OK, go to  Z4.
  4. Z4 CHECK CIRCUIT 2017 (WH/RD) FOR AN OPEN 
    • Disconnect: CJB C270d
    • Measure the resistance between the CJB C270d-5, circuit 2017 (WH/RD), harness side and the DRL enable relay pin 3, circuit 2017 (WH/RD), harness side.
      • Fig 2: Checking Circuit 2017 (WH/RD) For An Open
      GF0004654Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : REPAIR or INSTALL a new CJB. TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  5. Z5 CHECK CIRCUIT 295 (LB/PK) FOR AN OPEN 
    • Key in ON position.
    • Measure the voltage between the DRL enable relay pin 2, circuit 295 (LB/PK), harness side and ground.
      • Fig 3: Checking Circuit 295 (LB/PK) For An Open
      GF0004655Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  Z6.
    2. NO  : VERIFY the CJB fuse 14 (10A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
  6. Z6 CHECK CIRCUIT 57 (BK) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between the DRL enable relay pin 1, circuit 57 (BK), harness side and ground.
      • Fig 4: Checking Circuit 57 (BK) For An Open
      GF0004656Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  Z7.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  7. Z7 CHECK CIRCUIT 1731 (RD/BK) FOR AN OPEN 
    • Connect: DRL Enable Relay
    • Disconnect: DRL Relay
    • Key in ON position.
    • Measure the voltage between the DRL relay pin 3, circuit 1731 (RD/BK), harness side and ground.
      • Fig 5: Checking Circuit 1731 (RD/BK) For An Open
      GF0004657Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  Z8.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  8. Z8 CHECK THE DRL RELAY 
    • Key in OFF position.
    • Carry out the DRL relay component test. Refer to COMPONENT TESTING.
    • Is the DRL relay OK? 
    1. YES  : Go to  Z9.
    2. NO  : INSTALL a new DRL relay. TEST the system for normal operation.
  9. Z9 CHECK CIRCUIT 13 (RD/BK) FOR AN OPEN 
    • Disconnect: DRL Resistor C196
    • Place the headlamp switch in the HEADLAMPS ON position.
    • Place the multifunction switch in the LOW BEAM position.
    • Measure the voltage between the DRL resistor C196-1, circuit 13 (RD/BK), harness side and ground.
      • Fig 6: Checking Circuit 13 (RD/BK) For An Open
      GF0004658Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : TURN the headlamp switch off. Go to  Z10.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  10. Z10 CHECK CIRCUIT 471 (OG/LG) FOR AN OPEN 
    • Connect: DRL Relay
    • Key in ON position.
    • Measure the voltage between the DRL resistor C196-2, circuit 471 (OG/LG), harness side and ground.
      • Fig 7: Checking Circuit 471 (OG/LG) For An Open
      GF0004659Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : INSTALL a new DRL resistor. TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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