My central locking pump is running when the car stands and is draining the battery. I have located the pump under the rear seat and when I unplug it the pump stops running. I am uncertain if the pump has a fault or if a line has split or come off somewhere causing the pump to run continually.

I have disconnected the two lines and tried holding my fingers over the end of the pump unit outlets but the pump continues to run is this a good enough test to confirm the pump is at fault or is there a controling relay somewhere or door switch problem ?

 

there is a leak on the line.

pump will keep on working for a certain time till a certain cut-off pressure is attained.

if no leak, then internal pump fault is present.

 

Thanks sleepwalker, any ideas where the pipework runs for ease of finding the relevant split pipe ? I was minded to start with the drivers door, passengers front door etc.

 

vacuum diagram.

202 is the same as 124. you got remote locking?

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No remote locking just door lock operated central locking.

 

Its all sorted now found a perished connector under the hood.