Wiring Up Cherokee 97+ Door Locks

[boxyjeep]

Going to be swapping in 97+ doors on my MJ and running into some issues with the electric door locks.  I've wired up the windows and mirrors and those are working as expected.  I have the whole harness, switches, locks/mirrors/windows out of the truck on a bench and for some reason can't get the door locks to work consistently.  I have 3 wires coming from the passenger switch that I'm not 100% sure where they should be connected.  I've used the factory service manual to wire everything up, but have DB/PK, LB/RD, and LB left over.  LB should be coming from IGN SWITCH SENSE (so I'm assuming I can just wire this up to ACC power).  The DB/PK and LB/RD should be coming from the OVERHEAD MODULE, which I assume is related to keyless entry.  Both wires appear to be 12v constantly when I test them.

 

Any advice on this?  I followed most of this guide, but they specified jumping the LB/RD and LB wires together, which didn't make much sense to me.  Also, the door locks are out of the truck.  Not sure if they need to be in the truck/grounded/hitting the striker/etc.

[boxyjeep]

Dug into this a bit more and believe the issue was bad door lock actuators.  I ordered a few more and should know soon.

[boxyjeep]

Got the door lock actuators, but they weren't actually the issue.  Had to "adjust" the wiring and connector for the door locks a bit and now all is well.  Was able to even wire up my remote start/keyless entry to the door successfully.

[Airborne Janitor]

20 minutes ago, Chargum85 said:

Got the door lock actuators, but they weren't actually the issue.  Had to "adjust" the wiring and connector for the door locks a bit and now all is well.  Was able to even wire up my remote start/keyless entry to the door successfully.

 

What did you tap into to get your remote start/ keyless entry to work? 

[boxyjeep]

14 hours ago, Airborne Janitor said:

 

What did you tap into to get your remote start/ keyless entry to work? 

The Keyless Entry module had a few wires for lock/unlock.  I just tapped those into the lock/unlock signal wires (OR/VT and PK/VT) in the harness.  Since it's a ground trigger, no relays were needed.

[Airborne Janitor]

7 hours ago, Chargum85 said:

The Keyless Entry module had a few wires for lock/unlock.  I just tapped those into the lock/unlock signal wires (OR/VT and PK/VT) in the harness.  Since it's a ground trigger, no relays were needed.

 

Good to know. Thanks.

[CatfishJoe]

Hey Chargum, glad I could help some! I'm honestly not too sure about the LB/RD + LB splice either, but it seemed to be required for mine to work. What was the issue with the door connectors? Janky terminals? 

[boxyjeep]

7 hours ago, CatfishJoe said:

Hey Chargum, glad I could help some! I'm honestly not too sure about the LB/RD + LB splice either, but it seemed to be required for mine to work. What was the issue with the door connectors? Janky terminals? 

I spent some time testing and debugging this and don't remember exactly how or why, but this works well.  There are two wires that go to the overhead module that have a constant 12v current, except for when lock/unlock is triggered.  Jumping those two gives power to the appropriate wire at the right time.