1991 gm (olds) car
2006-11-04 10:47:08 · 5 answers · asked by Jim E 1 in Cars & Transportation ➔ Maintenance & Repairs
Yup, you have a short. Which means that somewhere you have a wire touching ground (anything metal on the car). You need to get a Ohm meter (preferably one with an audible continuity tester) and poke one end of the meter into the fuse slot that does not have voltage on it. (you can use the meter or a test light to find that end of the fuse slot) The other end needs to touch ground. Your meter will then show continuity between that wire and ground, and will let out an audible beep. Now start with the tail lights and work your way towards the brake pedal looking for the bad piece of wire. When you find the piece (by moving the wire) The meter will stop beeping because you removed the wire from touching ground. Then just repair the wire, and replace the fuse. Good luck
2006-11-04 11:00:24 · answer #1 · answered by Just a guy 2 · 0⤊ 0⤋
You could have a short in the system. Meaning that the power to the lights is getting to the body of the car. The neg terminal on the battery is connected to the body of the car. Too short of a system allows to much power to flow and blows fuses. The short could be in one of the lights or light bulbs. Or, perhaps you are using an incorrect size of fuse. To small will blow, but to large may cause damage to other parts. Also, check to see if you have a brake light relay under the hood. This relay could be bad. Use a multi-meter or ohmmeter to check resistance from power at the lights to the body of the vehicle. The meter should read total resistance or nothing (electricity can't flow from power to ground).
2006-11-04 19:05:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The wire going to one of the brake lights is shorted to ground.
2006-11-04 18:58:54 · answer #3 · answered by Nomadd 7 · 0⤊ 0⤋
You have a short.
2006-11-04 18:48:35 · answer #4 · answered by Isis 7 · 0⤊ 0⤋
possible brake light swiitch.
2006-11-04 22:39:12 · answer #5 · answered by chevy 2 · 0⤊ 0⤋