I have a 1999 XJ8 that I just purchased. The car is in great condition but it has a gremlin. When the car sits for a couple of hours or more ( no rime or reason) the marker lights come on and drain the battery. The car is locked up and I have gotten up at 2 a.m. and the lights are on. I can't figure it out. Is it a module that is faulty? Can anyone please help me.

Thanks

 

Welcome to the forum vicxj8,

I've moved your question from General Tech Help to X308 forum. Members here with the same model will be able to help.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

Sounds just like a bad BPM. Make sure the battery is in fact good to begin with. Can you provide a amp draw test after all the modules go to sleep?