2003 GMC Sonoma Extended Cab "break lamp bulb fault" Questions

...break light are not working. i changes the bulb, but no go, only the lights come on. Hmmmm, I would check to see if connecting an individual earth wire would help here, remove the mounting screws and ...

...lamp failure I replaced all the light bulbs and tested them. All break lights come one when I hit the breaks, but the error message still comes on after I turn on the ignition. Same thing happened ...

break light keeps going off but the bulb is ok Hi there! Check the Earth / return wires for these lamps. Often just screwed to a piece of chassis. If there is corrosion on the connector, then you will

...with a 50 amp and still no luck!!!! check your connections to the relay, sounds like something is breaking down under load did you get the ballast (HID starters) with the HID bulbs ? I would say ...

...break where it enters the trunk (or boot) near the trunk lid hinge. Inspect the wiring bundle closely near the hinge for damage. Otherwise the park/neutral switch, on the front side of the ...

...lamp switch?? I have to believe that with all of the "non related" issues happening that there is a wiring harness problem. If you track the harness back from the tail lights you will probably find a ...

...lamp circuit. Finding the actual fault is important and not very difficult. However, a wiring diagram may be needed to prevent confusion. Looking at the typical warning light circuit, you'll see that ...

...lamp. The code number refers to a diagnostic chart in a service manual that must be followed to pinpoint the faulty component. On other applications, a special "scan tool" must be plugged into the ...