Lights

Asked by Wolfie02 Dec 16, 2017 at 04:48 PM about the 2002 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

02 caddy deville  horn fuse kept blowing,pulled it
out....now headlights & running lights wont work
together. ....checked all fuses & replaced
relay.......still nothing!!   Frustrated

1 Answer
101,605

KenF answered 6 years ago

I believe those are switched on negative, meaning an errant ground can cause them to work (or a bad ground can stop them from working) so trace along wire harness to each of those items and look for any bad/damaged wiring or a wire that should be a ground hanging loose.

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