Question about 2002 Jeep Grand Cherokee

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On 2002 jeep laredo brake lights dont turn on if lights arent on

Brake lights only turn on if headlights are on but dont respond when brakes are pressed.if head lights arent on brake lights dont work at al

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That does not make any sense. Do the tail lights work? There are supposed to be separate filaments for brake lights, tail lights, and turn signals. In particular the center brake light should not be possible to be confused with tail lights or signals. Does it come on? If not, then you probably have no brake lights at all, and that is probably because of the bad fuse or the switch on the brake pedal for the brake lights.
If there is some sort of cross over between tail light and brake lights, that is usually from a bad light socket ground; which results in current backing up from one system to another. But then each is usually only half brightness.

Posted on Jul 20, 2010

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Posted on Jan 02, 2017

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I have a 99 Jeep Grand Cherokee Laredo. All 3 brake lights dont work i have replaced the brake light switch


have you check for power at the sockets for the brake light. if you have no power and as you say the brake light switch is good then you have a brake in the wire between the two that you will have to find and repair.

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My 99 Jeep grand Cherokee Laredo 4x4 has some brake light problems. The brake lights work fine during the day, but when I need to have my headlights on, my left brake light and tail light competley shut...


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Dec 04, 2009 | 2001 Jeep Grand Cherokee

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My rear lights and brake lights do not work. Turn,


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Brake Light doesn't work when headlights on


Have you tried replacing your brake light switch located under the dash on the brake pedal or it could be a short in the wire. You need a test light and unplug your brake light hornance from the bulb have someone step on the brake pedal touch the light to the hornance and see if your getting electrical current back there

Jul 30, 2009 | 2002 Jeep Grand Cherokee

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May 07, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Rear lights wont turn on when headlights are on, rear door and window wont open


1st u have to take off the rear stop light & clean the jackfish after put it back 7 FOR TH E INSIDE LIGHT press the light before u open the door & contact me on eliezein@hotmail.com coz i have the same jeep & it was the same problem

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