Brake lights dont work. Fuse is good, brake switch at at pedal has been replaced. all other lights work.?

Question

truck is a 2004 chevy 2500HD EXTENDED CAB, all other functions work. What could be wrong???

when my trailer is hooked up, the trailer brake lights work. The truck is only 2 years old, I wouldn't think it's the wiring.

Answer 1

turn signal switch in the steering column

Answer 2

There is a plug near the brake switch by the pedal. This is what sends the signal for the brake lights to go on as you press the brake. You may just need to plug this plug in.

Answer 3

are the turn signal and brake light the same bulb, if so sound like the turn signal switch is faulty ( the power for the brake lights goes throught the switch). If they are seperate bulbs check to if you have 12 volts at the brake light bulb socket. if so replace bulb. if not check wiring back to the switch

Answer 4

The fuse may be good, but do you have power across the fuse?

You could also check to see if you have power at the tail light by using an insulation piercing probe on a voltmeter to see if current is getting back there. If it is, you may be dealing with a corroded connector on the back of the tail light, or a corroded fixture in the tail light itself.

Answer 5

relies upon on the c ar, yet maximum automobiles, incredibly older automobiles use both a separate buld, or a separate set of filaments in a unmarried bulb for the brake gentle, and tail gentle. that is extremely consumer-friendly for the tail gentle to paintings, and brake gentle now to not paintings.

Answer 6

when you put the new brake light switch on did you adjust it and did you check for a good ground.

Answer 7

It could be faulty wiring, check your electrical