Does anybody have a wiring diagram showing the tail lights for a 2001 Tahoe? The left turn signal/stop light out put on the trailer light plug is not working. The left turn signal/stop light on the Tahoe is working.

 

Do you use a round 7 to a 4 flat adapter or is yours just a 4 flat? I have seen those adapters screw up.

 

I run the 7 round to 4 flat adapter, had some corrosion or something built up on one of the contacts and make it stop working. Get a voltmeter and check the voltage on all the contacts coming out of the truck and be sure you know exactly where the problem is before you go tearing **** apart. Unless you already did....then by all means tear **** apart.

 

Yeah that;s the problem. I'm not getting any power at teh 7 way plug on the Tahoe. The running lights blade and right turn/stop works. Its just the left turn/stop blade. I was looking in the owner's manual last night and saw where there is a fuse in the electrical box under the hood for trailer lights. Maybe it's one of them.

 

Bingo, That's the problem. Drove me crazy one day trying to figure it out. It's the fuse

 

FIXED!!! @#$% @$#@$ %#@%#@ @#$^%^% %$%$#@# %$%$#%# fuses!!

 

Thats the same thing i said.