GM5 module .... confused

[SeanConnor]

All,

I have been having problems with the remote locking for ages now. I have come to the conclusion that the GM5 relays are PROBABLY knackered. Now I could send it off for repair or do it myself (I'm an electronics engineer). However the keys are also ancient and
a bit knackered .I replaced the battery in one of them and now it won't open the doors and fails to re-program using the method detailed on here several times ie working key to pos 1 .. press sequence of buttons on non working key etc etc). It still starts the car however.

Sooo I have managed to get hold of a replacement GM5. If I buy a couple of new keys can I just program the keys with an AK90 and pop in the new GM5 ? I thought that you could but somebody told me that you need to code the GM5 to the car ? I must admit to being a bit confused by this as the car will start without ANY GM5 attached.

Dazed and confused.

Swindon

[Ewazix]

I'm not sure about key coding etc but the GM5 must be coded to the car and is generally easier to send it off for a quick turn-around repair. I've done a couple and posted some tips here viewtopic.php?f=34&t=102586&hilit

I'm wondering if the DME/EWS modules may have gone out of sync with the damaged key? (That could sound like I know about DME/EWS, which I don't! ) but would be where I'd start researching since DME/EWS control starting whilst the GM5 can be removed and the car will still start but locking, wipers, roof, windows etc won't work.

[SeanConnor]

Thanks for that. It looks like a send it away job then. I'll put the spare in so that the wipers work.

Cheers
Sean