Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Will the stop lamps go off if you disconnect the wiring at the stop lamp switch?
Odd indeed. Let me get a wiring diagram. BRB
I honestly have no idea on how to diagnose this. You might want to retrieve the codes from the bcm though.
I can give you the wiring diagrams since I had already looked them up.
If you have retrieved any codes or are going to I'll hang on, if not, I think I will have to opt out.
HELLO YOU SAY YOUR BRAKE LIGHTS ARE STAYING ON
WHAT have you done as far as work, have you checked the switch
HAVE YOU REMOVED THE STOP LAMP RELAY,
What about the junction block in the rear if u disconnect there do they go out? I had one that had shorted internally
Wait a minute you said you had brake lights "according to my Tech II scanner" are the lights actualy on are we talking about an input your seeing in data?
It is good you have a tech 2, if you do a total dtc check what codes do you have in what module
I am pulling up the wiring now we are fixing this today!!! You say lights are on with key in the acc position? And u have disconnected the bcm, switch and even the joint connextor at rear?
Okay the stop lamp relay I asked you about earlier, is integral to the underhood fuse box. Which you say you have replaced. You also stated you replaced the BCM, did you perform thr programming for the BCM? If it were not programmed with correct rpo, could cause issue.
And lastly with everything hooked up, if you started with switch, bcm, fuse box joint connector what can you unplug and make these lights go off? I would like to know that and the results of a total system dtc check of all modules.
Do you have a short to voltage in x3 pin 13
Hello my name is ***** ***** I can help.
Need a volt meter to test not a test light
Have you check for for voltage at the brake switch terminal C? Terminal D should read O volts when the pedal is pressed?
This is how the system work (When the driver presses the brake pedal, the switch contacts open and B+ is interrupted to the body control module)
Please get back with me
Hello you can call anytime tomorrow, thank you
Just checking to see if you need any more help.