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George H.
George H., ASE Certified Technician
Category: Jeep
Satisfied Customers: 18593
Experience:  ASE Master Tech 15+ years
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I have a 1999 Grand Cherokee and the right tail light is not

Customer Question

I have a 1999 Grand Cherokee and the right tail light is not working. I have replaced the tail light assembly, bulbs, checked the fuses and replaced the brake light switch. I don't know what else to do.
Submitted: 1 year ago.
Category: Jeep
Expert:  George H. replied 1 year ago.

Hello I will help you with your question,

Can you swap the left assembly to the right and see if it works?

Do you have a voltmeter to check the circuit if I guide you?

Customer: replied 1 year ago.
I did all of that and there is no reading on the meter.
Expert:  George H. replied 1 year ago.

OK, so can you check at the switch to see if you have power there?

Expert:  George H. replied 1 year ago.

Please check fuse 4 and 20 in the junction block for power at the testpoints on the back of each fuse.

You can check for ground to the lamp at the black wire on its connector. Put one lead of the meter to a 12 volt source and use the other to touch the black wire pin. If you show 12 volts then you have ground.

Let me know what you are seeing so I can help

Thank you

Expert:  George H. replied 1 year ago.

Fuse #6 as well, all should show 12 volts at both testpoints on each.