is my alarm ecu at fault here?

[mikeouk]

hi all,

my car is a 99 2.5 986 Uk spec

the central locking has stopped working. I found moisture under the seat, took out the alarm ecu and it wasnt visibly damp. The car sounds like its trying to lock and the boot (trunk)will open using the remote key. I took the car to a porsche specialist who thought it could be an issue with door locks, they tried that and it didnt solve the problem, they are now saying they think it is the alarm ecu after all. Surely if the locks are making a noise like they are trying to lock then the ecu is doing its job, i.e. its picking up the signal from the key fob and then trying to lock the doors.

[RFM]

The stored fault codes in the system can give the needed info in which direction the issue should be sought, check the codes first!

[pk2]

Did they put it on a PS2?. THe car runs?

The ecu can get funky a little wet and half work. If it was damp down there you should take it out, open it up make sure it's dry inside.

But your right, if your lock(S) are groaning that can only mean two things 1) At least one is physically jammed up. 2) you have a bad connection, corroded or otherwise (I think it'a a wee damp over there no?). It just can't draw the necessary current through a grimy connection.

This could be any thing from a wireblock/connector, relay contacts, connectors, fuse, ground wire connection, etc. Cleaning these contacts can be as easy as pulling them apart and pluging them back together several Times. Follow the juice, jeck every junction along the way.

Regards PK

Regards, PK