Flat battery but have i also tripped the imobiliser???
Cheers for your help
E30 325i SE Flat Battery
Moderator: martauto
-
milescook
- E30 Zone Camper
- Posts: 1285
- Joined: Thu Jan 13, 2011 11:00 pm
- Location: The 'bran of Cwm
- Contact:
Mine's an SE, and with an On Board Computer had a kind of immobiliser - it would turn over but not fire. This is certainly what happened when I took the OBC out in the end I just had to join two green wires.
Unplug battery for a good hour to reset OBC - then charge up and try again maybe? Remember your OBC immobiliser and codes, instruction book etc.
Unplug battery for a good hour to reset OBC - then charge up and try again maybe? Remember your OBC immobiliser and codes, instruction book etc.
The story so far... http://www.cookracing.co.uk/
Also please help the race budget by watching some videos
https://www.youtube.com/cookracinguk
Also please help the race budget by watching some videos
https://www.youtube.com/cookracinguk-
do-drift-1
- E30 Zone Newbie
- Posts: 143
- Joined: Mon Sep 06, 2010 11:00 pm
- Location: south wales mind glamorgan pontypridd
Also check the brushes in your alternator, and also the diode on the back of the alternator . . .I replaces both on my alternator, and it was good as new after 
ALWAYS WANTED A BIMMAWAHH
-
Brianmoooore
- E30 Zone Team Member
- Posts: 49358
- Joined: Mon Jan 10, 2005 11:00 pm
What's the current state of the battery?
Does the engine crank?
Crank and not start?
Disconnecting the battery for half a second will defeat the OBC immobiliser, but you may have a second immobiliser.
Open up the 'phantom' battery terminal on the engine bulkhead, behind the front battery tray, and connect a 12 volt bulb between the smaller terminal and earth, to establish that power is present there.
Connect a piece of wire between this small terminal and the + terminal of the ignition coil, leaving all existing wires in place. Try to start the car.
Does the engine crank?
Crank and not start?
Disconnecting the battery for half a second will defeat the OBC immobiliser, but you may have a second immobiliser.
Open up the 'phantom' battery terminal on the engine bulkhead, behind the front battery tray, and connect a 12 volt bulb between the smaller terminal and earth, to establish that power is present there.
Connect a piece of wire between this small terminal and the + terminal of the ignition coil, leaving all existing wires in place. Try to start the car.