Brake lights don't work

30

Asked by Sep 07, 2014 at 01:42 AM about the 1991 GMC Sierra 1500 C1500 SLE Extended Cab SB

Question type: Maintenance & Repair

I was told it was the brake light switch, replaced that and no effect.  All the tail lights work including the 4 way flashers , and all the bulbs and fuses are sound; there is no electricity on the fuse lugs to the brake lights however.  Any suggestions?

4 Answers

33,435

There was a recall by GM for problems on that model but not so sure if it was that year. Give Chevy a jingle and ask.

2 out of 2 people think this is helpful.
30

I checked there was no recall for the K 1500 for this problem. Thank you though. Have tried some new experiments, found a broken off wire to the steering column, re-connected it and the brake lights come on and STAY on constantly even with the ignition off. The only way to get them OFF was by pulling the fuse for the 4 way flashers. I am now thoroughly puzzled.

2 out of 2 people think this is helpful.
33,435

By chance when you replaced the brake switch did you get the right one? Is the switch adjustable? And just how did the wire get broken in the first place. Hmmmm. .......... Hmmmm. It's something simple. You got the brake light to go on. Now what is it going to take it to work properly. Let's keep thinking about this.

4 out of 4 people think this is helpful.
30

Finally got this brake light issue repaired. The cut white wire on the turn signal connection was the key, and had to adjust the new brake light switch but now works perfectly. The previous owner had done some wiring under the dash and must have accidently cut that wire, found more wire damage to repair as well but wanted to thank you for your help. This problem turned out to be a combo of a bad brake light switch and a cut or broken wire (white) into the turn signal switch connector.

1 out of 1 people think this is helpful.

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