Left Turn/Brake Light Pin on 7-Way Not Working on a 2004 Chevy Silverado

Question:

I have a 2004 z-71 that the left turn is not getting power out of the 7 pin connector. Everything else works fine. Hoping to find out where to look or get the color code for the wires

asked by: Wade W

Expert Reply:

On the back of a 7-Way, the wire coming out in the 3:00 position is the left turn and brake lights. You can trace the wire back to determine if there is a break in the wire somewhere by testing with a circuit tester like # PTW2993 if needed.

You may have a blown fuse or relay somewhere that needs to be replaced. Check the truck owner's manual to find the locations of the fuses/relays related to the trailer wiring and then check them to determine if they need to be replaced.

expert reply by: Michael H