brake lights not working when headlights are on
The most likely cause of a Grand Cherokee brake light not working is a bad brake light switch. The first step is to check the brake light switch.
Reasons Why Your Brake Lights Don T Work When Headlights Are On The Grumpy Mechanic
But when the running lights are on and you hit the brakes the trailer lights go out instead of get brighter.
. Turns brakes running lights hazard lights. A faulty bulb can also result in your brake light malfunctioning. When the heads are on it is grounding through the braketurn.
Brake lights are turned on when the system detects a certain amount of pressure on the pedals. As the brake pedal starts reducing pressure in the brake lines the. Step by step guide to solve the problem.
Have an issue with my 01 Grand Cherokee Laredo where my brake lights will not illuminate when the headlights are on. It could very well be making contact with the 12v positive. If the light doesnt work only with the lights on and adding a ground makes it light The odds are that ground is positive.
It is probably a ground issue. One of the filaments on your bulb may be touching the other filament resulting in the power source from. If the switch is bad it will not send the correct voltage to the tail lights when the headlights are.
If your Jeep Grand Cherokees brake lights are not working you may want to know what to do. Then use a circuit tester like 40376 if you do not already have one to test the connector on the truck. If this is the case for your car and the turn signal light isnt.
At first we need to look at the switch. There are some issues we need to consider before improving the performance of the brake lights. Discussion Starter 1 Sep 5 2012.
If the brake lights work with the heads off then I would not think it is a bulb issue. First to isolate the issue disconnect the trailer from the truck. The brake lights in some vehicles are powered through the same circuit that powers the turn signal light.
All lights work fine.
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