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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (Exterior Lighting System -- F250-F550 Super Duty) >> Diagnosis & Testing >> Daytime Running Lamps (DRL) >> Pinpoint Tests >> Pinpoint Test F: The Daytime Running Lamps (DRL) Are Inoperative >> Pinpoint Test F: The DRL Are Inoperative

Pinpoint Test F: The DRL Are Inoperative

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. F1 VERIFY THE DRL OPERATION 
    • Ignition ON.
    • Place the headlamp switch in the OFF position.
    • If equipped with an automatic transmission, place the gear selector lever in any gear other than PARK (P).
    • If equipped with a manual transmission, release the parking brake.
    • Are the DRL illuminated? 
    • Yes  : The system is operating correctly. INFORM the customer of the conditions required for the DRL to operate correctly.
    • No  : GO to F2.
  2. F2 CHECK THE OPERATION OF THE HEADLAMPS 
    • Place the headlamp switch in the HEADLAMPS ON position and observe the headlamps.
    • Do the headlamps operate correctly? 
    • Yes  : For vehicles with an automatic transmission, GO to F3.

      For vehicles with a manual transmission, GO to  F4.

    • No  : REFER to HEADLAMPS .
  3. F3 CHECK THE TRANSMISSION GEAR INPUT 
    • Enter the following diagnostic mode on the scan tool: PCM or Transmission Control Module (TCM) DataLogger.
    • Monitor the PCM or TCM transmission gear status PID (TR) while placing the gear selector lever through all its positions.
    • Does the PID agree with the gear selection? 
  4. F4 CHECK THE BRAKE WARNING INDICATOR OPERATION 
    • Apply and release the parking brake while observing the brake warning indicator.
    • Does the brake warning indicator illuminate with the parking brake applied and turn off with the parking brake released? 
  5. F5 CHECK BCM FOR DRL CONFIGURATION 
    • Enter the following diagnostic mode on the scan tool: BCM Configuration.
    • Check the BCM configuration and make sure the DRL feature is enabled.
    • Is the BCMDRL configuration enabled? 
    • Yes  : INSTALL a new BCM. REFER to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
    • No  : ENABLE the DRL configuration. TEST the system for normal operation.
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