electrical problem...help!!
Thread Starter
Instructor
Joined: Dec 2005
Posts: 188
Likes: 20
From: Victoria Texas
electrical problem...help!!
I have a 77 L48. When my headlights are on, I have no brake lights. With the headlights off, the brake lights work fine, except when I put my foot on the brake, the front and side marker lights illuminate. It's very frustrating and scary driving at night since I have no brake lights. Please help!!
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
9 times out of 10, when electrical circuits do strange things, you have an open ground. Check all your ground straps and connections to ground. When you lose a ground, the circuits start to take alternate routes, following the path of least resistence, and vary according to what switch is on/off.
Last edited by Big2Bird; Dec 23, 2006 at 05:44 PM. Reason: error
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
Follow the wire harness from the tail lamp housings to the ground on the drivers side behind the rear wheel. Look carefully at the light socket grounds, take the bulbs out and check them out. Same deal on the front running lights
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
Yep, It is seeking a ground through the only path it has, and thats the parking light circuit. When the parking lights are activated, it has no where to go, so it doesnt work. Find the ground problem, and that will fix the brake lights.
Last edited by wombvette; Dec 23, 2006 at 07:30 PM.
