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-   -   Rear Brake Light wiring question (http://www.clubcobra.com/forums/era-speak-bob-putnam/144427-rear-brake-light-wiring-question.html)

Blackbart 01-28-2021 12:13 PM

Rear Brake Light wiring question
 
Would it be as simple as tapping into one of the three red wires leading to the rear brake/signal light in the trunk on the drivers side to power a third brake light and if so, which of the three would be used?
Thanks in advance,
Gary

patrickt 01-28-2021 03:56 PM

Quote:

Originally Posted by Blackbart (Post 1488252)
Would it be as simple as tapping into one of the three red wires leading to the rear brake/signal light in the trunk on the drivers side to power a third brake light and if so, which of the three would be used?
Thanks in advance,
Gary

Not unless you want your TBL blinking with your turn signals.;) Instead, tap in to the red wire leading to the trailer relay at the base of your steering column.

Blackbart 01-28-2021 05:34 PM

That's what I thought Patrick, just needed confirmation. Thank you.

strictlypersonl 01-29-2021 05:56 AM

There are two spare wires in the harness (one for a fuel pump, the other for backup lights) that can be used to do Pat's method.
Alternately you can take power from both rear signal light wires, using diodes to directionally limit the current to the 3rd light.

Blackbart 01-29-2021 07:00 AM

Quote:

Originally Posted by strictlypersonl (Post 1488281)
There are two spare wires in the harness (one for a fuel pump, the other for backup lights) that can be used to do Pat's method.
Alternately you can take power from both rear signal light wires, using diodes to directionally limit the current to the 3rd light.

Thanks Bob. I've used the back up light wiring already, NY requires a backup light. I'll hunt down the fuel pump wire.

strictlypersonl 01-29-2021 11:45 AM

BB,

You'll have to cut (intercept) the blue wire at either side of the 28/53 junction to make the new connection.


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