Rear running lights and dash lights do not work

JUSTIN CARLILE

MEMBER
1979 FORD TRUCK
5.1L
V8
2WD
AUTOMATIC
100,000 MILES

All lights work except rear running lights and dash lights (dash warning lights do work). I have changed the head light switch and replaced all bulbs. How do I fix this problem?

Monday, March 13th, 2017 AT 5:56 PM

2 Replies

CARADIODOC

MECHANIC
33,754 POSTS

Start by checking the fuses. The running lights have a different twelve volt feed than the headlights use. Were there any blackened or charred terminals on the old light switch?

Which model do you have, and what is the correct engine size?

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Monday, March 13th, 2017 AT 6:28 PM