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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1376 (Exterior Lighting System) >> Diagnosis And Testing >> Daytime Running Lamps (DRL) >> Pinpoint Tests >> Pinpoint Test Z: The Daytime Running Lamps (DRL) Are Inoperative >> Pinpoint Test Z: The DRL Are Inoperative

Pinpoint Test Z: The DRL Are Inoperative

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. Z1 VERIFY THE DRL OPERATION 
    • Ignition ON.
    • Place the headlamp switch in the OFF position.
    • If equipped with an automatic transaxle, place the gear selector lever in any gear other than PARK (P).
    • If equipped with a manual transaxle, release the parking brake.
    • Do the DRL illuminate? 
    • Yes:  The system is operating correctly. INFORM the customer of the conditions required for the DRL to operate correctly.
    • No:  GO to  Z2.
  2. Z2 CHECK THE OPERATION OF THE HEADLAMPS (VEHICLES WITH HALOGEN HEADLAMPS) OR FOG LAMPS (VEHICLES WITH HID HEADLAMPS) 
    • Place the headlamp switch in the HEADLAMPS ON position (and engage the fog lamp switch for vehicles with HID headlamps) and observe the headlamps/fog lamps.
    • Do the headlamps/fog lamps operate correctly? 
  3. Z3 CHECK THE IGNITION SWITCH INPUT 
    • Place the headlamp switch in the OFF position.
    • Enter the following diagnostic mode on the scan tool: SJB DataLogger.
    • Monitor the SJB ignition switch PIDs (IGN_A_ECU, IGN_O_ECU, IGN_R_ECU, IGN_S_ECU) while cycling the ignition switch through all its positions.
    • Does the PID agree with the ignition switch positions? 
    • Yes:  For vehicles with an automatic transaxle, GO to  Z4.

      For vehicles with a manual transaxle, GO to  Z5.

    • No:  REFER to STEERING COLUMN to diagnose the ignition switch input.
  4. Z4 CHECK THE TRANSAXLE GEAR INPUT 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: PCM DataLogger.
    • Monitor the PCM transmission gear status PID (TR) while placing the gear selector lever through all its positions.
    • Does the PID agree with the gear selection? 
  5. Z5 CHECK THE BRAKE WARNING INDICATOR OPERATION 
    • Ignition ON.
    • Apply and release the parking brake while observing the brake warning indicator.
    • Does the brake warning indicator operate correctly? 
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