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Tail lights and rear heater

Tiny
JOSHUA3585
  • MEMBER
  • 1999 FORD WINDSTAR
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 209,325 MILES
When you turn the switch off the taillights come on, sometimes it is both and sometimes just one. I have checked all of the fuses and the brake sensor, but it is not the brake lights. The taillights and the blinkers will blink fast sometimes and work normal. I replaced all the bulbs. If anyone could give me some advice I would greatly appreciate it. Oh yeah, I checked for bad grounds as well and I just do not know. I am clueless.
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Thursday, April 28th, 2016 AT 6:44 PM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have it scanned for codes by a mechanic it may be the light module or a shorted wire touching another.
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Friday, April 29th, 2016 AT 7:00 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hey JOSHUA3585,

I would check all of the bulb sockets in the front and the rear to see if you have any terminals inside that have melted together. If they seem okay its sounds like the multi function switch is having a problem. Check it out and get back to us.
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Friday, April 29th, 2016 AT 1:40 PM

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