93 Sc300 - Where Are The Tail Lights Grounded?

[sjc6765]

Does anybody know where the ground for the tail lights is? I think mine is bad,, the headlights dim when I step on the brakes. New alternator and battery.

Thanks,, Steve.

[UCF3]

Only the Taillights, or all lights?

[sjc6765]

If there is only one ground it would be for all of the lights. What is happening is when I have the headlights on, and step on the brakes,, or turn on a turn signal,, the head lights dim for just a second. Also,, during the daylight hours when the headlights are not on,, and I turn on a turn signal,, the heater/ac fan slows down when the turn signals flash.

I just replaced the alternator and battery,, and the problem is still there. so I was thinking it was a bad ground for the tail lights, since both the brake, and turn signals use them,, I looked around under the trunk lining, and there is no ground back there.

Does anybody have any ideas on what would causing this?

Thanks,, Steve.

[sjc6765]

Anybody??

[dcfish]

Anybody??

Replace the ground wire from the battery to the body. There is a thread in the es forum, I think SKperformance started it. http://us.lexusownersclub.com/forums/index...Search&f=94

[SKperformance]

Ground wires are your problem from the engine to the body and fuse block.