Friend has an imobiliser problem

[mattley]

A friend has had her MGF just sitting for a couple of months, went to jump it and as soon as I connected the jump leads the alarm went off, all good and to be expected, trouble is neither fob would turn the alarm off :? and one of the fobs definitely has a new battery.

Where do I go from here?

Cheers, Mattley

[Robert060379]

Take the fuse out.

[Vidal Baboon]

Does it stay on, or does it go out after you disconnect the jump leads?

My Fiat had a problem at 3am a few weeks ago- all neighbours stood around my car, waiting for me to awake from hibernation.

The Alarm was going off for 10mins before I was woken up by the angry mob outside


Neither red key or key fob would shut the bugger up- after much head scratching & a slight blind panic setting in, I decided to drive the car off our estate (with the alarm still going spastic) & dump it in a lane outside of the Village.

Turns out, the siren has a built in back-up battery- if they start to fail, they can cause all sorts of problems.

I'd guess the MG would have a similar set up, so just removing the fuse may not work either.



Have you tried to connect the jump leads up before switching the ignition on?
Try doing it with the ignition switched on- I must warn you though (my lecturer always used to tell us you could end up frying the ECU by connecting a battery pack/jump leads up), safest option would be to charge the battery overnight & try again.

Personally, I would'nt bother- just slap the leads on! Never had a problem before...

I don't have the patients to do things the correct way.


Oh, if it has a boot/bonnet switch- try taping it closed- see if that makes a difference.

Edited by Vidal Baboon on Friday 22 May 22:22

[gti tim]

stand close to car and press the lock button 5 or 6 times quickly. This is the way to re-synch MG remotes when batteries have been replace, so that may well fix it. (might be unlock button)