Great tip. Bad grounds are driving me crazy.

Drill little hole above brake light bulb and below break light bulb, then install small screws through board and tighten the screws down, make sure you don't drill through the rails running to the bulbs. 89 K1500 did this 8 years ago, no more problems...

Thank you so much, used electric tape to create pressure and boom!!! It worked but going to buy circuit board thank you so much from me and my 1992 chevy 2500

I bought a brand new TYC assembly and the board initially didn't have a back up light until I pressed in that same spot between the back up and center light like you show at 2:20. Mine stayed working when I released it though. Almost like the "wiring" strips that they use on the boards is only connected by the front and back boards being assembled tightly enough! Had one for the other side that several lights wouldn't work no matter what I seemed to do. I'm thinking about drilling out the plastic welds and soldering things together, the either re-plastic weld or just a button head screw and nut so I can take apart later if it has problems again. What a sh!tty design.

nice quick vid, also the ground all the lights in the rear share should be on the driver frame by the bumper mount

Thank's for your cooperation

nice!. i'll fix mine for now then put Cadillac tail lights with l.e.ds 💡🔨🔦🔆

Looks like the same issue with a ‘92 Silverado Step-side. Sitting in the garage, the lights work as they should; out driving (bouncing around) when either turn signal is selected, both tail lights flash. Bad board?

Thanks... I have the same truck & no top bulb or bottom bulb burning. The bulbs are new... I guess the board is the answer ! Nice video...

Nice video. I just don’t understand why anybody even disliked it

1991 Chevy Silverado 1500 2WD. I have running lights, backup lights and both turn signals working. But no break lights and no emergency flasher lights. Already replaced brake switch, fuses and bulbs. Still no brake lights. No bad grounds found. We have tried just about everything we can think of. We need the break lights to pass the inspection. Do turn signal lights and brake lights share the same circuit on older vehicles? Could it be a bad turn signal switch even though the turn signals work fine?

Has anyone checked the connector at the back of the truck (right before the T), that comes from the front of the truck? There are 4 wires (ie 4 sockets to check for power). Can someone identify which wire does what? I get no power from the light green one....

I have replaced mine twice from two different company's. will work for a month then stop working agian.

I put the boards in now I might have taillights I might not