Central Locking Problem

[ghowe79]

Hi,

A central locking problem seems to be a common problem with these cars, and mine is no exception- the central locking doesn't work!
After much tinkering, fiddling and inspection, I have determined that:

• The graphite blades are intact
• The electric motor works (while detached from module and powered separately)
• No leaks exist in the hoses
• The module "clicks" when the key is turned in any of the locks and in either direction.

I am at a loss to find an answer, and wonder if anyone has any thoughts on this?

Thanks,
Gareth

[Alan02]

Try feeling for a Vacuum at the outlet of the pump, on locking. Pressure on opening. Maybe a problem where the pipes go.

[ghowe79]

Hi,

Unfortunately there is nothing.

I have been able to operate the locks this morning by blowing down the pipe.

Gareth

[Alan02]

You say module clicks when key operated in lock,but does the pump cycle?

[ghowe79]

The module clicks however the pump does not operate.

Exactly the same symptoms from another module I borrowed this afternoon.

[Alan02]

It may be missing a signal / feed from somewhere. May need a wiring diagram to check at pump. Have you checked the loom from drivers door to A-Pillar?

[ghowe79]

Hi Alan02,

Thanks for your help with this. Where is the wiring loom positioned through the vehicle and where can I find a wiring diagram?

Gareth

[Alan02]

Hi Gareth,
The wiring from each door lock runs through the rubber sheath that goes from the inner edge of door to the area where the hinges are fixed.Wiring diagram a bit harder,Haynes perhaps ?