i have been having problems with my central locking on my ford focus zetec 2001 it locks when your driving and doesnt lock on the rear passenger now it has to be locked via the key on the passenger door
i take it you open your car with the key fob,change battery in fob , put ignition key in but do not start the engine,turn this to position 2 four times in 6 second's you will hear a sound if original stereo still fitted remove key & press door lock button this should sort your problem rgd's
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