I haven't posted in a while don't have the app anymore but I have an 01 xj 4.0 that's power locks don't work all around they used to work kind of periodically but near august of 2016 they completely stopped working, any body have the same issue or an idea on what it is and how to fix it?

 

Do they work from the passenger door button?

 

Nope they stopped working all together and I also replaced the driver door panel because my power windows didn't work either now they do but power locks didn't change

 

Okay, first off, make sure the fuse is good and breaker isn't tripped. Look in the Junction Block (passenger's footwell) for Fuse 15 and Circuit Breaker 28.

Otherwise it's time to bust out the multimeter. The door lock circuits are complicated. The master module is in the passenger door but there's a switch that will break everything in the driver door, part of the module you replaced. The door locks are susceptible to broken wires between the door and body, just like the windows and speakers.

Here are some diagrams and pinouts that will help you out:

 

I did have to fix my speakers when I got the jeep so the wiring issue could totally be it know the color of the wire by chance?

 

Its all in the diagrams with the little two-letter abbreviations. TN is tan, BL is blue, and so on

 

Thanks much will get back to you if I figure it out or fix it

 

Good luck dude!! Hopefully it's an easy fix

 

any update on your locks?

 

before he gets too far into troubleshooting he should solder the control boards. If that doesn't work then start troubleshooting. Cold solder joints are very common.

https://www.youtube.com/watch?v=MBNIC_2H_JQ

 

I soldered the old control panel and it didn't work then I bought a new one and that didn't fix it either

 

Haven't found the problem yet but I did take my key fab apart and the negative post wasn't making contact with the panel inside the fab so now when I click the unlock button it honk and when I unlock it you can tell it tries but it doesn't actually perform the task