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#2412371 - 12/02/17 05:23 PM 1970 Challenger - Brake Lights Not Working
72ls5fla Offline
member

Registered: 11/28/11
Posts: 199
Loc: Florida, US
Hey ...

No brake lights ..
Switch is ok - works as intended.
I get flashers, directionals and parking/running lights. So I know the bulbs are okay.

If I bypass the BL switch - same issue.

Also-
car has new dash harness, new ignition switch but original turn switch.
I checked pins on the turn switch connector, they look to be on good condition - no corrosions and the coupler makes a nice tight connection.

This is a new problems - they were working fine a week ago when I drove to s swapo meet/car show.


Where else can I look ??

Not sure of the BL circuit, so don't know where else to trouble-shoot.

Thanks in advance --

Bill
_________________________
SOLD -- :-((
1970 440 Sixpack Challenger
B5 Blue, black interior, real shaker car.


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#2413242 - 12/04/17 06:13 PM Re: 1970 Challenger - Brake Lights Not Working [Re: 72ls5fla]
michiganhotrod1 Offline
member

Registered: 03/09/08
Posts: 93
Loc: Detroit, Mi
I had the same problem last summer on my 70 Challenger. Everything worked except the brake lights, though with memory one of the turn signals flashed kind of slow.
It turned out to be the turn signal switch, brakes are wired through it so one side goes off when that signal flashed.
There was a slightly melted portion of the switch, preventing good contact.
I bought one of the readily available 71 - 74 switched, and drilled out the rivets for the switch portion, and put the flasher guts from my 70 switch inside. Used tiny nut and bolt from a hardware store to put it all back together.
All works fine now.
Mark

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#2413375 - 12/04/17 10:29 PM Re: 1970 Challenger - Brake Lights Not Working [Re: michiganhotrod1]
72ls5fla Offline
member

Registered: 11/28/11
Posts: 199
Loc: Florida, US
Many thanks!!

Will check the wiring running through the coupler on the turn switch harness.

thanks for the insight on the 70 vs. 71-74 switch type differences.
I like the fix you figured out :-)


Bill
_________________________
SOLD -- :-((
1970 440 Sixpack Challenger
B5 Blue, black interior, real shaker car.


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