XJ6 V8 4litre lighting problem

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markmyword - 02 Sep 2007 22:03 GMT

My mate has just purchased a jag as above and all but one headlamp bulb (ft
offside) are out although lower fog lights are working at the front. tail
lights are also not working.Brake lights are Ok. I suspect a earthing
fault but knoe=w not where to look. Any ideas gratfully received?

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Blake Dodson - 03 Sep 2007 01:49 GMT

> My mate has just purchased a jag as above and all but one headlamp bulb (ft
> offside) are out although lower fog lights are working at the front. tail
[quoted text clipped - 4 lines]
> Message posted usinghttp://www.talkaboutautos.com/group/alt.autos.jaguar/
> More information athttp://www.talkaboutautos.com/faq.html

Hello,

It seems to me that there are four lighting computers on our xj6's.
One mounted on each side of the radiator and two in the trunk. After
checking for good earth I would look for output from the light switch
to these modules. Come to think of it, perhaps you should remove your
light switch assembly before checking your modules; there are several
diodes in the light switch that go bad and could cause inoperative
lights.

Another thing... does your alarm system operate?

Cheers,
Blake

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