I think I have a short wire from the light to the frame.
68' brake light switch question??
Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,369
Likes: 12
From: wichita kansas
68' brake light switch question??
getting ready to put my L/H dash panel back in, and doing final check on everything so that i can hopefully just install the panel one time (has that EVER been done?? but going to attempt it. LOL)
i can't get brake lights to work at all, i checked continuity on original brake switch, and switch is working fine, i checked for 12v in harness plug, yep, got power, but when i plug switch into harness, no brake lights when pedal is down, i even unplugged the switch from the harness and made a jumper across the terminals on the two harness terminals, still nothing. is there a ground that i'm missing that is not yet plugged in since the dash panel is not yet installed? btw...brand new rear harness, new bulbs, all grounds in place per AIM, etc. any ideas??? hate to install dash harness and try to sort this out later by laying on my back in fetal position! LOL....thanks, Rick
i can't get brake lights to work at all, i checked continuity on original brake switch, and switch is working fine, i checked for 12v in harness plug, yep, got power, but when i plug switch into harness, no brake lights when pedal is down, i even unplugged the switch from the harness and made a jumper across the terminals on the two harness terminals, still nothing. is there a ground that i'm missing that is not yet plugged in since the dash panel is not yet installed? btw...brand new rear harness, new bulbs, all grounds in place per AIM, etc. any ideas??? hate to install dash harness and try to sort this out later by laying on my back in fetal position! LOL....thanks, Rick
Last edited by razman; Mar 14, 2013 at 02:37 PM. Reason: just cuz
Le Mans Master
Joined: Jun 2005
Posts: 5,447
Likes: 3
From: Syracuse NY
I know you said you checked for continuity but once you found the brake lights weren't working, did you check for voltage on the load side of the switch?
If voltage is passing through the switch it seems like it has to be either a bad ground at the tail lights or a problem in the rear wiring harness.
If voltage is passing through the switch it seems like it has to be either a bad ground at the tail lights or a problem in the rear wiring harness.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Raz.. your car works in the same fashion as the picture below... If the turn signal switch is not plugged in you won't have the lamps.
Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,369
Likes: 12
From: wichita kansas
THANKS Willcox, once again you have provided valuable info that i need, you have no idea how much i appreciate your participation on this forum, and your willingness to share your experience and knowledge! Rick
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Thread Starter
Drifting
Joined: Oct 2008
Posts: 1,369
Likes: 12
From: wichita kansas
just a quick update...(i hate it when people leave us hanging and don't post results or answers)
i temporarily plugged in steering column harness and BOOM, brake lights!! switch works fine also. thanks, Rick
i temporarily plugged in steering column harness and BOOM, brake lights!! switch works fine also. thanks, Rick
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,851
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Good deal.. 
Safety Car
Joined: Dec 2005
Posts: 4,270
Likes: 20
From: Central Michigan
Now would be a good time to make sure your turn signal switch works like it should(kind of a weak point on 68's)