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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) >> Symptom Chart

Symptom Chart

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.
SYMPTOM CHART

Condition Possible Sources Action
  • The Daytime Running Lamps (DRL) are inoperative
  • Exterior lighting system input/output
  • Body Control Module (BCM) configuration
  • Transmission gear input (automatic transmission)
  • Parking brake switch input (manual transmission)
  • BCM