Low beam headlights

Tiny
MJMKJM
  • 2001 FORD EXPEDITION

Electrical problem V8 Two Wheel Drive Manual 175000 miles

The low beam headlights will not work (both sides), the bulbs are good. The high beams work fine. When you dim from high to low beam the low beams do not come on, however the fog lamps do come on.
i thought it might be a breaker or relay that has gone out. A local mechanic advised me that it was the dimmer switch and the steering coloumn had to be disassembled to repair it.
this did not sound right to me. I know heavy equipemnt, cars are little out of my expertise. Please advise.

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Tuesday, January 12th, 2010 AT 12:32 PM

1 Reply

Tiny
2CARPROS KEN
  • ADMIN
  • 10,306 POSTS

Hello,

It sounds like you have a headlight relay that is out. Here is wiring diagram and a guide to help you get the repair done.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please run this test and get back to us so we can keep helping you.

Cheers, Ken

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Friday, August 18th, 2017 AT 7:29 PM

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