As far as i can remember i just reached in with a little posi screwdriver as the 2 screws were visible.

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but I may have had to;

detach actuator rod
undo 3 screws on the outside end of door

slide lock mech out

undo 2 little screws
unclip the wiring connector





mr2garages.

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No the 2 switches on the b pillar are the push button for interior lights and the lever for the seatbelt tensioner.

Neither are associated with the central locking