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Richard, UK Car Mechanic
Category: UK Car
Satisfied Customers: 15492
Experience:  12 years as a technician at a Ford and Jaguar dealer Ford and Jaguar factory certified
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Jaguar XJ8: I have no lights on the rear of a 1999 Jag XJ8,

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I have no lights on the rear of a 1999 Jag XJ8, the dip beam lights are extremely bright and the lights on symbol on the dash is not showing
A local mechanic has checked the bulbs and fuses and they are fine
What can it be, the brake lights and indicators work fine
Hello and welcome to

So just the rear tail lights are not working? Do the number plate lights work?
Customer: replied 4 years ago.

No the number plate lights do not work

The tail lights are directly controlled by the Body Processor Module. This module is located under the passenger side dash behind the glove box. The module may not be outputting power to the bulbs. In order to check this we need to perform some testing with a digital multimeter. I have also seen bad switches cause this. Remove the steering column covers and look at the back of the headlight switch. There are wires soldered to the back of the switch so we need to see if any wires are loose or have broken off.
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