6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > Interiors, Dash, Lights and Electrical
#Sponsored

Interiors, Dash, Lights and Electrical Everything Inside

Reply
 
Thread Tools
  #1  
Old March 22nd, 2023, 11:21 PM
bostru bostru is offline
Junior Member
 
Join Date: Aug 2017
Location: Westland MI
Truck: 1960
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 51
bostru is on a distinguished road
Default Brake and tail light issue

Have a tail light problem on my 1960 GMC step side . I have power to the headlight switch but no tail or brake lights .The headlights work as they should . If I jump the red power in wire on the headlight switch to the black tail light wire the tail lights work . If the light switch is turned on or if I run a hot wire to the brake light switch the brake lights work. I have replaced the headlight switch but no difference . Can't figure this one out.

Thank for any help
Reply With Quote
  #2  
Old March 23rd, 2023, 02:47 AM
jmfurgason's Avatar
jmfurgason jmfurgason is offline
Member
 
Join Date: Dec 2019
Location: Las Cruces NM
Truck: 1963 GMC 1000 sm420 305E lwb wideside
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 53
jmfurgason is on a distinguished road
Default Re: Brake and tail light issue

Check all ground wires first. Relace flasher? I had similar issue grond to the headlights was loose and the flasher replaced, all good now. Good luck hope this helps. LouieLouie
Reply With Quote
  #3  
Old March 23rd, 2023, 04:35 AM
AZKen's Avatar
AZKen AZKen is offline
-= Dues Paid =-
 
Join Date: Jul 2014
Location: AZ
Truck: 6066GMC
Posts: 1,647
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 527
AZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really niceAZKen is just really nice
Default Re: Brake and tail light issue

The orange wire supplies voltage to those circuits..so the orange wire is broken somewhere or it's fuse is blown. Check for voltage at orange wire terminal on H/L sw. Check voltage, in and out, of tail/stop/dome fuse. Your dome light is probably not working either. Hot RED comes to that fuse, thru fuse and out to Hot ORN. Hot ORN branches to dimmer and to H/L sw where it energizes BLK at switch "on" mode.

Last edited by AZKen; March 23rd, 2023 at 04:49 AM.
Reply With Quote
  #4  
Old March 23rd, 2023, 05:41 AM
bostru bostru is offline
Junior Member
 
Join Date: Aug 2017
Location: Westland MI
Truck: 1960
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 51
bostru is on a distinguished road
Default Re: Brake and tail light issue

Thanks, will check orange wire tomorrow and yes dome light does not work either
Reply With Quote
  #5  
Old March 24th, 2023, 12:15 AM
bostru bostru is offline
Junior Member
 
Join Date: Aug 2017
Location: Westland MI
Truck: 1960
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 51
bostru is on a distinguished road
Default Re: Brake and tail light issue

Appears to be in the orange wire at the fuse box ,by moving the wire I get intermittent power to the light switch . Thanks for pointing me in the right direction AZ Ken.
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Brake light issue surfamtn Interiors, Dash, Lights and Electrical 6 January 18th, 2016 07:04 PM
Follow up to my brake light issue and interior light question Archiver Previous Forum Posts 0 August 12th, 2012 02:34 AM
Just getting started! Brake light issue Archiver Previous Forum Posts 17 May 31st, 2012 08:45 AM
Tail And Brake light wiring???? Archiver Previous Forum Posts 0 September 27th, 2009 02:21 AM
Re: Tail And Brake light wiring???? Archiver Previous Forum Posts 0 September 27th, 2009 02:14 AM


All times are GMT +1. The time now is 02:40 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 751730915004|1729820449|0