The brake light wires on a 1992 GMC Vandura are typically color-coded as follows: the positive wire is usually light green, while the negative wire is often black. However, it's always best to consult a specific wiring diagram for your vehicle, as colors can sometimes vary based on the vehicle's configuration or modifications.
Just above the brake pedal, yes it has six wires.
whats the color circuit for the blinkers an break lights?
It doesn't.... By the e-brake under the dash, there is a bundle of wires (4) that are blunt cut and taped together. These get spliced to the brake controller wires by function, not by color.
check for blown brake light bulbs and broken wires. also check brake light switch on brake pedal
check the wires at brake light switch on brake pedal they are bad about breaking brake light switch
IT SOUNDS LIKE A SHORT SOMEWHERE OR MAYBE CROSSED WIRES.
Short in wires or wired incorrectly.
Orange
try your brake light swtich on the brake pedal and check wires
There probably is only one cause for your interior lights to go on when you apply the brakes. There probably are brake light wires and interior wires that have warned together.
It is on the brake pedal. There should be two wires connected to it. I found it last weekend after I could not get the van out of park, one of the wires broke off the switch.
There are some wires coming from your master cylinder, under the floorpan on the driver's side... those are you brake light switches