Heres the advice I followed:
Posted By: John Hinckley
Date: Tuesday, 29 October 2002, at 9:09 a.m.
In Response To: Re: 1968 brake lights dont go on (JOHN MELVIN)
John -
Your brake light switch gets (battery) power through a 14-ga. orange wire from the fuse block, and when it closes, it feeds power through the white wire from the switch to the curved turn signal switch connector at the steering column. If the turn signal switch is working and in the straight-ahead position, it feeds power out to the brake lights from the two terminals adjacent to the white wire - yellow (left side) and dark green (right side). If you jumper power directly to the yellow and dark green terminals, that will bypass the turn signal switch and illuminate the brake lights; if that works and jumpering power to the white wire terminal on the curved connector doesn't, the problem is in the turn signal switch.
Heres what I did as described in the above:
I jumped a hot wire from the fuse block to the white wire terminal on the crescent shaped wire connector that feeds the steering column. Its easy as there is only one white wire on the connector, and you can test it real quick by just poking the hot wire into the back of the connector until you touch the white wire terminal. Do not disconnect this crescent shaped connector. It must be plugged together to test properly: Viola, brake lights came on, so this showed the turn signal switch was good. If the brake lights didnt come on, that would isolate the prob in the turn signal unit
I hate to say this on the NCRS forum, but this is how I fixed it: I disconnected the brake light switch connector. Leave the connector off, and just deal with the two wires that go right to the brake light switch. I then took the hot wire and connected it to one side of the brake light switch. On the other side of the switch, I spliced right into that white wire. Works fine now.
I couldnt trace down where the exact problem lies because to my dash harness is so hacked up from pervious owners with improperly colored wires. I got lucky the steering column wiring hadnt been butchered up.
My sincere thanks to Mr Hinckley
Posted By: John Hinckley
Date: Tuesday, 29 October 2002, at 9:09 a.m.
In Response To: Re: 1968 brake lights dont go on (JOHN MELVIN)
John -
Your brake light switch gets (battery) power through a 14-ga. orange wire from the fuse block, and when it closes, it feeds power through the white wire from the switch to the curved turn signal switch connector at the steering column. If the turn signal switch is working and in the straight-ahead position, it feeds power out to the brake lights from the two terminals adjacent to the white wire - yellow (left side) and dark green (right side). If you jumper power directly to the yellow and dark green terminals, that will bypass the turn signal switch and illuminate the brake lights; if that works and jumpering power to the white wire terminal on the curved connector doesn't, the problem is in the turn signal switch.
Heres what I did as described in the above:
I jumped a hot wire from the fuse block to the white wire terminal on the crescent shaped wire connector that feeds the steering column. Its easy as there is only one white wire on the connector, and you can test it real quick by just poking the hot wire into the back of the connector until you touch the white wire terminal. Do not disconnect this crescent shaped connector. It must be plugged together to test properly: Viola, brake lights came on, so this showed the turn signal switch was good. If the brake lights didnt come on, that would isolate the prob in the turn signal unit
I hate to say this on the NCRS forum, but this is how I fixed it: I disconnected the brake light switch connector. Leave the connector off, and just deal with the two wires that go right to the brake light switch. I then took the hot wire and connected it to one side of the brake light switch. On the other side of the switch, I spliced right into that white wire. Works fine now.
I couldnt trace down where the exact problem lies because to my dash harness is so hacked up from pervious owners with improperly colored wires. I got lucky the steering column wiring hadnt been butchered up.
My sincere thanks to Mr Hinckley
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