XJ40 ( XJ81 ) 1986 - 1994

Automatic door locks not working

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Old Apr 27, 2025 | 11:22 AM
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Default Automatic door locks not working

Hello all,

I have a 93 XJ40, and the automatic door locks quit working. It is an electrical problem, and I thought that someone had posted a troubleshooting guide for the fuse one error. Can someone point me to the right help? I have the electrical manual and others. Or, on the slight chance, I have no idea what I am talking about. Can you assist me?
 
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Old Apr 28, 2025 | 09:04 AM
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Are there symptoms? Was your battery unhooked recently, and if so was on or more of the locks operated manually at the time? If you try to operate one, does anything happen at the others? I'm not sure what fuse it is, but certainly start at that one for checking power.
 
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Old Jul 26, 2025 | 06:25 PM
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Originally Posted by jerry_hoback
Are there symptoms? Was your battery unhooked recently, and if so was on or more of the locks operated manually at the time? If you try to operate one, does anything happen at the others? I'm not sure what fuse it is, but certainly start at that one for checking power.
I have the battery on a trickle charger but there have been times where the battery was down, but not unhooked. I replaced the fuse in position 2 of fuse box 1, 15 A. I got a reaction from all door positions after the fuse replace but now I have nothing. Is there any way to reset the system?
 
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Old Jul 28, 2025 | 03:31 AM
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If you lock the doors manually and then use the key to open the drivers door, does the key open any other locks? Does the lock button on the dash lock all the doors? Is the battery in the remote ok?
 
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