Electric Short - 2000 XJ

Aug 05, 2004 7 Replies

Need some advice on how to handle this from someone thats had this before. Somehow developed a short in the power lock system (coincidently after putting in an after market stereo), the fuse keeps blowing just as soon as you hit the lock button.



How easily can the stealership detect where the short is? or will I simply get robbed for hours of searching - and they still might not find the problem?



My gut feeling is its coming from the drivers door switches - this gets the most wear & tear, plus snow and rain.



The XJ has 113k miles on it.



Thanks for the info and replies. Art '89 Plymouth AHB (82400-162423) '98 XJ Black (35948-45398) '00 XJ Black (33600-) "I can't use what I can't abuse" - Garbage RIP #3, GO! #29 #88


Disconnect the power to the stereo and see if the problem goes away.

My guess is that you wired the stereo power into the door lock circuit, and are overpowering the fuse. This can also cause the radio to work at odd times, however you would be noticing that by now - since you didn't tell us of any strange behavior with the raido, I assume it works OK.

If the door fuse is rated very small, AND you keep the radio wired into the door lock circuit, then you may be able to simply upgrade the fuse. There is an inherent problem with this though, you can put in a bigger fuse that may not blow when it should, and this can result in a fire. I don't think you have a huge problem here though. If the door lock fuse is rated at say 3 amps, try a 5 amp fuse instead (assuming you keep the radio tied to the door locks in the first place, the best thing is to tie the radio to the correct power source), or maybe a 7 amp. I would not exceed 7 amps, and I would make sure the radio has its own fuse tha tis rated lower than that. If you have a

5 amp fuse now, try bumping it to 10.

Before you switch the fuses though, see if the radio is part of the circuit. Disconnect the radio, or trip the fuse again and see if the radio also goes off. If so, move the radio's power to another place.

Whoever installed the aftermarket stereo obviously just connected it to the first convenient wire they could find which has +12 volts on it... which happened to also power your door locks. Obviously an electrical genius at work. ;)

Rewire the stereo through an inline fuse directly to the battery.

Jerry

The power windows fuse blows.

BTW - I installed the stereo with the proper wiring harness that plugs into the Chrysler attachments. Did it to my '98 XJ with no electrical problems - but it didn't last after some wacko flipped my truck over at an intersection. Art '89 Plymouth AHB (82400-162423) '98 XJ Black (35948-45398) '00 XJ Black (33600-) '04 Dodge Dakota (7-) "I can't use what I can't abuse" - Garbage RIP #3, GO! #29 #88

The electrical genius was me - the stereo is wired properly with one of them adapter wiring harnesses that plug direct into the Chrysler attachments in the truck. Art '89 Plymouth AHB (82400-162423) '98 XJ Black (35948-45398) '00 XJ Black (33600-) '04 Dodge Dakota (7-) "I can't use what I can't abuse" - Garbage RIP #3, GO! #29 #88

Thanks for the diagram, there's probably more going on in the drivers side door

- the speaker quit working several months ago.

Art '89 Plymouth AHB (82400-162423) '98 XJ Black (35948-45398) '00 XJ Black (33600-) '04 Dodge Dakota (7-) "I can't use what I can't abuse" - Garbage RIP #3, GO! #29 #88

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