91 firebird electrical issue

Asked by JakeandBlackBetty525... Jul 21, 2018 at 08:34 PM about the 1991 Pontiac Firebird Convertible

Question type: Maintenance & Repair

So, one day I started to drive home and when I
went to turn my head lights on, nothing happened.
No noise, no actuator, no lights, no interior lights,
no dash lights, nothing. After I stopped to check
some fuses, I realized the interior lights weren't
coming on when I opened the door. And the cigar
lighter wasn't working either. And neither were the
trail lights. Break lights, hazards, back up lights,
blinkers, radio, windows, windshield wipers, power
mirrors, and pretty much everything else still
works.
When I got it home,I took it apart to check the
fuses. Everything checked out fine. Not a single
blown fuse. Then I checked the convenience box.
Still, everything is fine. Checked the head light
switch and it looks fine.
I don't really know what to do other than to start
going through the whole wiring harness and
checking for shorts or loose grounds. Can anyone
help me that's also had the issue?

1 Answer
26,815

taver91 answered 6 years ago

If everything was dead, take a look at the battery feed to the fuse panel (loose, corroded, burnt, etc.). Just because fuses are not blown does not tell you the whole circuit leading to the fuses is OK. Your ignition switch should provide the power to the fuse panel when it is turned on.

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