Offroad-Express

hey all got a small issue that im scratching my noggin over.

with my central locking i can unlock the truck by key and by button on drivers door but i cant lock it by both methods have to manually do all doors.

can anyone help

you might have a broken wire in the loom near the hinge or a faulty relay

Had a similar fualt. All doors unlocking , only 2 locking.
My lock mechanisms were full of dust and crap, cleaned them out and know the central locks are sweet