XJ6 & XJ12 Series I, II & III 1968-1992

88 XJ-8 battery drain

Old 10-05-2007, 08:55 AM
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Default RE: 88 XJ-8 battery drain


if youpost a picture of the car we will know what style body you have, whether Series 3 XJ-6, or Series 4 XJ-40.

The radio should always have power, for the preset stations memory, but that is not enough to cause a drain.

I would check the trunk/boot light, and that requires two people that trust each other:One to get in the trunk and check if the trunk light stays ON when the lid is closed, another outside to open the trunk when the one inside is done checking. This is not a job for one person alone.
If the light goes OFF as it should when the trunk lid is shut, then you might have some open circuit or module that's gone bad elsewhere.

Another place to check is the light switches at each door, assuming each door has a small light at the rear that comes on when it is opened, but if it stays ON when you close the door, you would notsee it. I guess a way to check those switches is to open and close each door and see if the interior light goes ON and OFF. Then at least you know the switches are good or not.

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