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2001 Ford Taurus MIL goes off as dash dimmer switch increas

Tiny
EACH
  • MEMBER
  • 2001 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 100,500 MILES
The MIL went on. I put the reader on it and there were no codes. I then turned headlights on and the MIL went out. I then tried the dashboard light dimmer and found when it was turned down all the way, the MIL was bright. As I increased the dimmer, the dashboard lights got brighter, the MIL got dimmer until I increased the dashboard lights all the way and the MIL went out. What gives?
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Thursday, February 5th, 2009 AT 6:16 PM

1 Reply

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,750 POSTS
I would suspect a problem in the circuit board in the dash cluster. Although I have never seen this before, it seems as the check engine light is backfeeding through the running light circuit.
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Sunday, February 8th, 2009 AT 7:27 AM

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