Exterior Lighting Related Problems of the 1997 Mercury Marquis

Table 1 shows three common exterior lighting related problems of the 1997 Mercury Marquis.

Table 1. Exterior Lighting related problems of Mercury Marquis

Problem Category Number of Problems
Headlights problems
1
Turn Signal problems
1
High/low Beam Switch problems
1

Headlights problem #1

Complaint received via e-mail. I have a 1997 Mercury Marquis with electronic lights. They are all controlled with a processor called an lcm for light control module. It is not to be confused with the cheaper automatic dimmer on the dashboard. The lights went out last summer, and the lenses turned yellow. I tried new bulbs, that did not work. I checked fuses and relays and all were fine. I replaced the turn signal light dimmer switch on the steering column, and that did not work. Finally this fall I called fords technical line to see if there was a bulletin or recall or a quick fix. All I could get out of them was bring it in. I, then decided to call parts, and was told that to fix it would cost $200. 00. Needless to say I found a way to bypass the computer, and wired in a relay that was directly connected to the battery. I spent 2 hours wet sanding and rubbing out the lenses to get them bright enough. I feel this is a safety issue, and should be a recall item. We have many obstacles that depend on bright light driving, including wild deer, and edges of roads leading to lakes. . . . . . . $200. 00 was cost for lcm, no labor , part *f7ab-136788-aa.

Turn Signal problem #2

Complaint received via e-mail. I have a 1997 Mercury Marquis with electronic lights. They are all controlled with a processor called an lcm for light control module. It is not to be confused with the cheaper automatic dimmer on the dashboard. The lights went out last summer, and the lenses turned yellow. I tried new bulbs, that did not work. I checked fuses and relays and all were fine. I replaced the turn signal light dimmer switch on the steering column, and that did not work. Finally this fall I called fords technical line to see if there was a bulletin or recall or a quick fix. All I could get out of them was bring it in. I, then decided to call parts, and was told that to fix it would cost $200. 00. Needless to say I found a way to bypass the computer, and wired in a relay that was directly connected to the battery. I spent 2 hours wet sanding and rubbing out the lenses to get them bright enough. I feel this is a safety issue, and should be a recall item. We have many obstacles that depend on bright light driving, including wild deer, and edges of roads leading to lakes. . . . . . . $200. 00 was cost for lcm, no labor , part *f7ab-136788-aa.

High/low Beam Switch problem #3

The design of the lights makes visibility poor when switching from high beam to low beam.


Exterior Lighting related problems in other Mercury Marquis model year vehicles:



Fuel Economy of Marquis Vehicles
Marquis Service Bulletins
Marquis Safety Recalls
Marquis Defect Investigations