2004 jeep liberty lock problem

you probably blew the fuse. check main fuse box inside cabin or passenger side.

and yes, the multiplex parking light was removed. Just remove the fuse and place a resistor inline.

alajoe,

  I have the pink wire powered up on my Jeep with the CHDL4-PK and everything works perfect except for the parking lights. I've been using the vehicle for about a week now, so I don't think having the pink wire powered up would cause your problems.

 When you wired everything up, did you make all your connections saving the data bus wire for last? If not, I'm wondering if that would cause the symptoms you're experiencing.

 BTW, the instructions I received with my CHDL4-PK said to connect the pink wire also.

 I'm going to look through the factory wiring diagrams and see if I can find anything that would cause your problem.

if your factory remotes or button does not lock the front doors. its a fuse issue. If it doesnt work its because there is a break in the circuit.  insted of yanking fuses to check, look on the lable for LOCK fuses.

also, you need a relay to do the parking lights,

if you have the latest firmware, you will still need to wire up a relay

sometimes the locking system needs to be reset. sit inside car. lock it with your hands, then press unlock on the remote.

After looking at the factory service manual, it looks pretty simple.

The door lock/unlock switch pulses the BCM with a resistance. Then, the BCM triggers either a lock relay or an unlock relay. Finally, the relay activates the door lock motor to either lock or unlock the door.

If you've already checked the relays, then it sounds like bad news. The BCM may have taken a hit.