Automatic Door Lock
2 Answers
Would check the wiring loom in the boot right hand side and check 2 see if there and any wires corroded . or passenger side Actuator could be screwed or truck one . try putting the key into your boot and turning to right and see if both doors lock that should give idear if it boot or passenger side .. bit i check wiring loom as well it common fault. to unlock from boot turn 2 left .
If lock car and set key on seat while person in it and on dash board push button unlock ?