Question about 1990 Mercury Grand Marquis
The parking lights remain on even though the car is shut off and the light switch is in the off position?
If your car has no AFTERMARKET electronics such as an alarm system or remote start .... 1998 Marquis Has a headlamp switch that supplies a negative signal to the BCM (body control module) located to the right of the accelerator petal and up a bit towards the heater control area in the dash ... if there are no other offending items it will be either the BCM the switch or wires ... if you have aftermarket devices (that operate the parking lamps) .. I would check those first, just because. Note: the BCM is very expensive,
Posted on May 08, 2009
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Posted on Jan 02, 2017
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