986 passenger door won't lock

[buddybuddy63]

[QUOTE=tonycarreon;253344]one turn is lock. two turns is lock + disable alarm. and yes, three quick turns (emergency operation) "will lock all functioning elements of the central locking system" and turn off the infrared passenger compartment monitoring.

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This forum is brilliant, thank you for the above tip!

The remote control button on my one and only key was working when I picked up my W reg Boxster yesterday from the car dealer (operated by dealer not me). The remote is not working now, the led on key and the dashboard light up. Locking by key only locks driver door and not the passenger door or fuel filler lid.

So, the only way I manage to lock both doors and the filler cap is using the three quick turns emergency operation (thank you so much for the quoted tip!). Could anyone now help me find out what the problem is with my remote central locking please (remote battery is brand new)?

Many thanks in advance.
Buddy