vacavillebob Posted June 24, 2013 Share Posted June 24, 2013 I need some help. I have lost my brake lights, They were working fine and yesterday they just stopped. I do have turn signals, tail lights and flashers. I have replaced the blubs, fuse, & brake switch. I could use any suggestions and if anyone has a wiring diagram for the brake wiring that would be great. Thank you, Bob Quote Link to comment Share on other sites More sharing options...
bobsmc Posted June 24, 2013 Share Posted June 24, 2013 i dont have the diagram handy...follow the curcuit with a test light. start at the fuse,check both sides for power with the test light to ground.then move on till you find the loss of power. fuse to brake switch to turn signal switch to interior harness connector and so on down the line hope this helps Quote Link to comment Share on other sites More sharing options...
vacavillebob Posted June 24, 2013 Author Share Posted June 24, 2013 Thank you, I will try that tomorrow. I was not aware that the brakes wires ran up to the turn signal. Thanks again, Bob Quote Link to comment Share on other sites More sharing options...
monte70car Posted June 24, 2013 Share Posted June 24, 2013 Bob try this TURN SIGNAL SWITCH This harness has a connector on it for the 3 7/8 in. 1969-74 GM steering column connection used by GM and many after-market manufacturers. If using a late model GM steering column or an aftermarket column using the 4 1/4 in. GM turn signal connector, replace existing connector with connector “L” being sure to match wires by color. (See diagram G on sheet 2 if needed) White 12 volt feed from brake switch Dark Green RH tail lamp Yellow LH tail lamp Purple 12 volt feed from turn flasher Brown 12 volt feed from hazard flasher Dark Blue RH front park lamp Light Blue LH front park lamp Black Horn relay ground wire to horn switch Quote Link to comment Share on other sites More sharing options...
vacavillebob Posted June 24, 2013 Author Share Posted June 24, 2013 Thank you Robert, having the color codes helps. I am running the stock steering column. Your message mentions to see (Diagram G on sheet 2) were do I find that. I am trying to trace the white wire now from the brake switch, do you know where the other end connects. Thank you, Bob Quote Link to comment Share on other sites More sharing options...
monte70car Posted June 24, 2013 Share Posted June 24, 2013 Bob I will email you the sheet its from my wire harness kit I put in last Dec but all the connection and color are stock. Quote Link to comment Share on other sites More sharing options...
monte70car Posted June 25, 2013 Share Posted June 25, 2013 Bob I sent you the diagram of the wiring. Quote Link to comment Share on other sites More sharing options...
vacavillebob Posted June 25, 2013 Author Share Posted June 25, 2013 Hello Robert: I got the diagram you e-mailed me. Love it that makes it so easy to understand. Thank you bunches. Bob Quote Link to comment Share on other sites More sharing options...
monte70car Posted June 26, 2013 Share Posted June 26, 2013 Your welcome Bob I have other sheets if needed let me know. Quote Link to comment Share on other sites More sharing options...
vacavillebob Posted August 13, 2013 Author Share Posted August 13, 2013 I finally found the problem with the brake lights. One of the wires in the 7 plug on the steering column was not making a full connection. Talk about hard to find. Took a couple of months but it is fixed Yeh. Quote Link to comment Share on other sites More sharing options...
LostnFound Posted August 13, 2013 Share Posted August 13, 2013 Congrats Bob on finding and fixing that needle in a haystack. Cheers, Larry Quote Link to comment Share on other sites More sharing options...
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