Reverse lights not working!!!

[BigAndyS]

Well, for my first post, a pain in the butt. Ok. My wife likes to back into things at night. So, I had some old lights sitting around and thought, I could put them under the back of the blazer and help her out. Well, I hooked one up right to the green reverse light wire and grounded to the frame. Checked it, worked fine. Did the other side identically, red wire to green in the harness and black to chassis. Checked it, NO LIGHTS WORK AT ALL!!!! No backup lights or the ones I put on. Checked the underhood fuse, fine. Please help me.

[Philberto]

Did you check the fuses under the rear seat?

[BigAndyS]

Well, I didn't see 1. I'll look again.

[SteveTB03]

The fuse block is under the rear drivers side seat cushion look there for the fuse that's blown if any at all.

[The Roadie]

Rear fuse #32, confusingly labeled "TBC 5". For extra credit, try to guess what "TBC" stands for. I have no idea why they didn't call it by the name used by the rest of the design team - the BCM.

The idiots who wrote the Owner's Manual should be shot for allowing the fuse boxes to have such insane fuse naming conventions.

[BigAndyS]

ok. Finally got around to replacing the 32 fuse. works now. Ok. I want my aux. back up lights to work, so does anyone have a wiring diagram on how to wire them in safely? Obviously the fuse is too small for the lights I thought would work.

[fishsticks]

How about tapping the reverse light wire like you did but using it to trigger a relay. Could pull your power for the lights from the 12v 30A constant on the trailer plug.

[BigAndyS]

I was thinking about that but didn't know about the 12v on the plug. I'll do that then.

[fishsticks]

I was thinking about that but didn't know about the 12v on the plug. I'll do that then.

You need to connect it @ the front fuse box but it's already wired to the plug.

[The Roadie]

You need to add a metric nut or wingnut to the threaded stud on the far left of this pic, after installing the ring lug that the factory put nearby but not ON the stud.

[Trail X]

ok. Finally got around to replacing the 32 fuse. works now. Ok. I want my aux. back up lights to work, so does anyone have a wiring diagram on how to wire them in safely? Obviously the fuse is too small for the lights I thought would work.

Up the fuse by 5 amps... I honestly doubt it will hurt anything.

[OregTrailBlazin]

I would make sure to have a switch too. I would hate to be in a parking lot, throw it in reverse and see a very well lit up cop behind me!!

[KE7WOX]

Is there something against having auxiliary backup lights?


At least for me the next mode is a backup alarm, to prevent accidents due to how stupid are the kids here in this school