BRAKE LIGHT WIRING

Mercury Marquis

Tiny

ccsandy

March, 11, 2007 AT 9:48 PM

I have a 97 Mercury Grand Marquis and am trying to put a brakelight/backup light flashing unit (for EMS service). Which wire is the brakelight wire as there are 3 wires that connect to the assembly.

thanks

4 Answers

Tiny

M_H_RITZEL

March, 12, 2007 AT 9:57 PM

One wire would go to the brake ligts, the second would go to the back up lights and the third would go to the power source.

Tiny

ccsandy

March, 12, 2007 AT 10:32 PM

Actually the back up light wiring is completely separate. The tail light/ turn signal/ brake light assembly has 3 wires plus the ground that go into the assembly.

I guess i'll just have to turn them each on individually and test the wire for current.

Tiny

M_H_RITZEL

March, 13, 2007 AT 8:56 AM

What kind of flasher is it? I looked in the garage and found one that has 6 wires of course none of them are labeled, let me know what kind you have

Tiny

merlin2021

March, 13, 2007 AT 4:00 PM

Are you talking about installing Wig Wag lights like the cops?
If so ya need more than a flashser! You need a solinoid set.

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