I have a 94 Full-Size Blazer 6.5L Turbo. The problem is with the rear passenger side Turn signal, brake light & hazard light (all the same filament). When I turn on the passenger side turn signal is flashes quickly, the front light flashes, but the rear light does not flash at all. If I press brakes only the driver's side works. If I turn on the hazard lights all front work, but only driver's side works in back.
The driving lights in rear work on both sides (two bulbs per side). The back-up lights work on both sides.
I have replaced both bulbs on rear passenger side & turn signal/hazard flasher.
What is going on here??

Thanks

 

Any Ideas out there?

 

maybe some poorly connected trailer wiring? i dont know why someone would have done it, but sometimes guys use scotch locks in bad places to connect for trailer wiring and they go bad causing a split in the wire. usually will end up on the tail light circuit that goes down first *as its the more commonly used function. the turn signals tend to last the longest, by weeks.

i dont know enough about a blazer that big to help beyond this info. plus i would imagine a 94 blazer would have a towing package factory installed somewhere.

 

Problem Solved.

The circuit board in the taillight was the problem. The bulbs were good, the flasher was good and the wiring was not a problem. Never had one of those burn up before.