Different door lock problem...

[cfensch]

Hello all,

I'm having a different problem with my power locks. Over the last few years, the passenger's and rear doors have begun — and now have failed completely — to open with the driver's lock switch or remote. The remote will only open the trunk and the driver's door. As well, the driver's lock switch will only open/lock the driver's door and the trunk. So, in essence, I have to manually unlock the back doors and passenger's door. At one point, I replaced the driver's power lock switch panel on the door, thinking that something might be wrong with the original, but the problem still exists even with the second one. Any ideas on what needs to be repaired? A relay?

Thanks!

Charles FenschEl Paso, Texas

[elwesso]

in each door there are this little computers, called LCUs..... Maybe the LCU's are bad...?

Do the windows work?

[cfensch]

Yes, the windows work fine. The other three doors stopped working at the same time. For a while, they worked some of the time, but now they don't unlock, except manually.

[iav8]

I have the same problem with my 1993 J30t. At first it seem to come and go with the tempurature. There was no problem all summer and the locks didn't work in the winter. Spring and fall it depended on the weather. Then I thought that I stumbled upon a sequesnce of opening and closing the locks with the key in the ingition to fix it. However I am now convinced that this may have been coicidence since it doesn't work anymore. Alas, now the problem is with me for good.

[elwesso]

just did some research, and this should help you guys out

http://www.fuzzycats.com/docs/door_locks.pdf