V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

Headlights Turning On Themselves

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Old 02-14-2016, 09:17 PM
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robinson209
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Default Headlights Turning On Themselves

My headlights come on by themselves. If the key is on, or if the car is running, then the headlights will come on. They turn back off when I turn the key off.

Any ideas?
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Old 02-16-2016, 09:31 AM
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lincolnshibuya
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was wondering if you have DRL (daytime running lights) module installed. The circuit for the headlight is tapped to always HOT power, any defective device (stuck) will make your headlights on even if you turn off the engine.


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