Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello I will help you with your question,
Do you have a voltmeter to check the signals from the brake and turn switch if I guide you?
Good, in the body fuse block check the stop/turn fuses for power when you have the brake pedal depressed.
It is 4 and 6 in the underseat fuse block.
Do you have trailer wiring installed?
OK, then can you check the bulb sockets?
Is there trailer wiring installed?
If you have 12 volts at both testpoints on the fuses but nothing to the sockets then you have a break between the two points.
Any "creative" or aftermarket wiring done between the two points?
OK, I will see if they have a harness diagram but it has to be between those two points and each has a separate wire.
I am not finding anything for the harness view but the if the fuses come hot with the brake pedal then it is just a wire between the fuse and the rear. You may want to pull the fuse block to see if the connector on the bottom is corroded.
I will get the diagram for the circuit and the connection
Click here for diagrams
Let me know how I can help
There is a connection on each side, if you open the diagrams I posted above you will see the dark green wire for the right side changes to yellow at the 402 connector, the left side is yellow all the way back through the 401 connector
I posted the diagram above yesterday? Just scroll up and click where it says "click here for diagrams"