1999 Jeep Grand Cherokee Laredo 6 Cyl 4.0L
Body & Interior
my rear driver and passenger front and rear door locks don't work
Nissan Technical Advisor 3/22/2011
I think that the door lock control module is short to ground or defective. Usually it is located at the driver side door panel. Remove the door panel to acces the module, testing is required for contuity and voltage. Make sure ground is ok. Check your owner's manual for fuse location and check that one if blown.