All rear lights out?

[Robbie]

Hello all,

EVERY light on the back of my car('91 GM GS) has been doing weird stuff lately...along with some other stuff.

- ALL rear lights quit for a short while
- Taillights now work intermittently, brakelights and turn signals(rear only--fronts still work) are out
- Cruise control will not shut off when I hit the brake, and does not want to cut out from the wheel button
- Key-in-ignition and lights-on dingers do not work.

I was driving the other day and smelled burning electrical stuff from the A/C system while it was on Vent, but not on any other settings. It stopped and the lights still worked, but now they have quit.

Any ideas, guys? I don't want to throw away this car! We're going to have it in the shop tomorrow for a brakelight switch replacement(what my dad thinks it is)...anything else we should tell the guy?

[interceptor1985]

oh boy it sounds like an electrical short...if you don't have much experience with auto electrical I would have a buddy look at it or take it to a good shop. electrical is a hard one.

[gadget73]

Check the fuses. If the brake light fuse is out, the cruise won't shut off properly. As for the rest of the lights, I'd bet on a bad ground in the trunk somewhere. Check all the ground connections, pull and clean them up. Probably will fix the problem.

[saiyaneye]

It wouldn't be a fuse because if it was blown it wouldn't even work intermittently correct? Get a digital multimeter and check your wires, check the resistance of the ground too. Lower the resistance on the ground the better. I dunno what the resistance on the grounds are, but usually when I ground my amps or anything electrical in my car I look for around .2 ohms of resistance or lower.

[85crownHPP]

Id go ahead and pull the headlight switch and multifunction switch and look for burned spots on the connectors, then replace that part