Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello, do you have a testlight or volt meter? we need to do some tests
WE have to start with basics, Get to the brake light switch, probe the orange wire with key off, I need the volts, then hold brake pedal down and probe the LT blue? wire and need the voltage readings, I think i am correct on wire colors, you leave switch plugged in, I need you to backprobe the 2 wires at the connector at switch
odd, both should be battery voltage, nothing less, I am unsure why the low volts , is battery fully charged? can you remove the stop fuse and probe the fuse terminals and see if battery voltage there
that would not be possible if you have 11.8 at orange wire at switch, You removed the stop fuse, probed the fuse terminals no power to either?
im going to opt out, i am unsure which direction to go with non tests
Disconnect brake light switch and jump orange wire to blue wire and let me know if that turns on brake lights. Thanks.
Are you 100% sure you have voltage on orange wire?
If connection was loose voltage would be low on orange wire. Are you sure you have good voltage on orange wire?
This wire gets voltage from the 20 amp STOP fuse in location 1 of fusebox under the hood. Check to see if fuse is good if so remove/reinsert fuse a couple times incase it has a poor connection. If that doesnt help check connections at fusebox. If still no good then replace orange wire that goes from fuse box to switch. Let me know how it goes or if you have more questions. Thanks.
Here is a wiring diagram to help with testing.