hi all.

D4 has two key fobs both unlock all doors but both DO NOT LOCK any door. Wondering whether its a door actuator problem or something else. Have replaced many actuators in the doors of D4 but do they fail in one direction? And does the driver side door become the main power feed for the remaining doors. At a guess was going to replace the actuator on driver side thinking this could be the master lock? I have run a scan gauge over the vehicle with no errors for door locks coming up. thanks in advance