The remote for the locks doesn't work or the lock/unlock switch in the van. If the remote is use the lights flash but locks will not unlock or lock.
Can not tell which fuse is for the power locks.

 

Welcome to DF
Here is a tsb for the problem you are having.

SUBJECT:
Flash: Driver And Passenger Power Door Lock Switches Inoperative And Opening the
Liftgate Triggers The Theft Alarm
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Body Control Module
(BCM) with new software.
MODELS:
2004 - 2005 (RG) Chrysler Voyager (International Markets)
2004 - 2005 (RS) Town & Country/Caravan
NOTE: This bulletin applies to 2005 vehicles equipped with Power Locks only (sales
code JPB) and 2004 - 2005 vehicles equipped with Power Locks, Power
Liftgate, and Security Alarm (sales codes JPB, JRC and LSA respectively).
SYMPTOM/CONDITION:
The vehicle operator may describe:
· The alarm sounds erroneously when opening the power liftgate using the key fob
while the Vehicle Theft Alarm (VTA) is armed.
· The driver's and/or passenger's door lock switches are inoperative.
The technician may find “Left Unlock Output Failure” and/or “Right Unlock Output Failure ”
Diagnostic Trouble Codes (DTC's) in the BCM.

 

I pulled out or wiggled the fuses in the fuse box the locks worked foe a while then they stopped working. The rear hatch still works fine all this time. Do not have alarm on the car if that matters.

 

It shouldn't.

 

I had the same problem with my 2005 Grand Caravan & simply disconnecting the battery & removing from the car resets the computer. After reinstalling the battery the lock/unlock functions returned to normal........Hope this helps.........Ken.. P.S. had to do this several times over 2 1/2 to 3 yrs.