2003 f250 diesel superduty PU

2003 FORD F-250
197,000 MILES • V8 • 4WD • AUTOMATIC
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MKSW
  • MEMBER
  • 2 POSTS
instrument panel lights, fog lights and tail lights are out. All the fuses were checked and relay switches were cleaned and making contact. All went out at the same time. Any suggestions?
Nov 15, 2010 at 6:24 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
it could be your headlight switch as the dash lights andparking lightsgo to that, and there is a microprocessor inside the switch. But there are 3 or 4 other relays in the central junction box that are called trailer tow relays and they may be knocking the lights out as well.......It could also be aloose or poor connection on one of the switches or relay not making contact.
Nov 15, 2010 at 7:43 AM
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MKSW
  • MEMBER
  • 2 POSTS
Thank you. Turns out there was a short in the trailer wiring harness. Michelle
Nov 15, 2010 at 4:42 PM
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