Headlights Off, Brake Lights Work Headlights On….no Brake Lights?

You need the lights to come on with slight pedal movement. Once you locate the change, find the electrical connector for the switch. From here, you have two methods to check the change utilizing a take a look at mild . Both procedures are described in the next steps. If the sunshine bulb illuminates, repair the socket ground connection.

This is a straightforward circuit for the brake lights. The bulb for both the brake lights and tail lights might be the identical bulb . If every little thing appear Okay, the fault might be within the fuse field.

Proper Tail Lights

When you activate the headlights, 12 V is applied to the tail gentle filament, removing the collection floor path. At this level you could have 12 V on each side of the brake light filament. As you discovered, the dangerous ground is usually corrosion within the tail mild sockets. Make certain the tail gentle assemblies aren’t cracked and the socket seals are good, or the problem will come again. This is the basic symptom of a bad floor on the left light meeting.

jeep grand cherokee brake lights not working when headlights are on

I replaced the mini bulbs and the brake change. When I activate the head lights, all of the bulbs mild up within the again apart from the brake light above the hatch. When the headlights are off and I press on the brake pedal, no brake lights, besides the sunshine above the hatch. I swapped the fog gentle relay with the brake batt relay and nonetheless nothing.

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