Fuse blows for interior lights

Asked by Dec 24, 2014 at 11:13 AM about the 2007 Mercury Grand Marquis LS Premium

Question type: Maintenance & Repair

Fuse blows for interior lights. Headlights and everything else works fine. No work has
been done. Possibly the lcm? Can this be bypassed to verify problem?

2 Answers

1,205

Could be the LCM, but I doubt it. Solder a 12v bulb to an extra fuse (not easy) plug it in, it will light up because of the short. If it only lights up when a door is opened, check each light socket and bulb. If your jury rig bulb goes out, you've found the short. If the test bulb lights with the doors closed, it's a wiring problem somewhere, or possibly the LCM. A big question is does the fuse blow immediately, or after a door is opened? This is a tough one. Someone else may know if the lcm can do this.

1 out of 1 people think this is helpful.
20

I have 2007 Grand Marq with same problem - no interior light and keeps blowing fuse (#18 ). I dropped driver side visor and discovered bare wire shorting out against one of the visor mounting screws. Wrapped bare wire with electrical tape, remounted visor and problem solved. Several years ago we had a Nissan Quest with same problem and paid dealer $500 to find the bare visor wire, so that's the first place I looked on my Merc.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Mercury Grand Marquis Questions

Mercury Grand Marquis Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 5,260
#2 kbro
kbro
Reputation 2,050
#3 Js08016
Js08016
Reputation 1,660
View All

Related Models For Sale

Used Ford Crown Victoria
8 Great Deals out of 972 listings starting at $2,990
Used Lincoln Town Car
31 Great Deals out of 1,818 listings starting at $1,650
Used Chevrolet Impala
588 Great Deals out of 29,008 listings starting at $1,300
Used Chrysler 300
343 Great Deals out of 20,692 listings starting at $1,000
Used Dodge Charger
228 Great Deals out of 27,473 listings starting at $1,997
Used Ford Taurus
197 Great Deals out of 19,353 listings starting at $500
Used Chevrolet Tahoe
629 Great Deals out of 27,855 listings starting at $600
Used Honda Accord
718 Great Deals out of 83,067 listings starting at $500
Used Ford Mustang
325 Great Deals out of 45,932 listings starting at $2,000
Used Ford F-150
2,426 Great Deals out of 211,450 listings starting at $895
Used Cadillac DTS
49 Great Deals out of 1,586 listings starting at $2,750
Used Buick LaCrosse
190 Great Deals out of 22,831 listings starting at $1,500

Used Cars For Sale

2007 Mercury Grand Marquis LS Premium For Sale
3 Great Deals out of 104 listings starting at $1,900