Imobiliser light flashing car won't start

1. dod530d Newbie Joined: Dec 2011 Posts: 3

   #1 6th December 2011, 12:58

   My Daughters Citroen saxo Forte 1.1 2002 had a broken key in the ignition barrel and no spare key . So down to the local scrapyard and removed a set off locks ignition barrel from a 2000 saxo all fitted and car won't start .
   Can anyone tell me what I have to do next to get the car started ?
   
   Thanks
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 6th December 2011, 13:32

   You`ve possibly locked the ecu.
3. NismoSteve Frequent Poster Joined: Dec 2011 Thorne+Grimsby Posts: 717 S2GTi / Megane cc

   #3 6th December 2011, 13:55

   does it have a key fob? Have you tried disconnecting the battery. And finally what key are you using now, if its a different key you will need your old key close to the ignition barrel so the transponder can pick up the original keys chip.
4. dod530d Newbie Joined: Dec 2011 Posts: 3

   #4 6th December 2011, 15:16

   Hi ,disconnected the positive lead for over an hour ,just tried to start again with old key held next to transponder ,still won't start and orange light continues to flash .
5. dod530d Newbie Joined: Dec 2011 Posts: 3

   #5 6th December 2011, 15:17

   How do we unlock the ECU ?
6. Cam Saxperience Post Whore Joined: Nov 2010 Kent Posts: 8439 Gen 7 Celica 190.

   #6 6th December 2011, 15:47

   You will need unlocked ecu, the immoboliser is a little black box around the back of the glovebox..
7. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #7 6th December 2011, 18:25

   Quote:

   Originally Posted by dod530d How do we unlock the ECU ?

   It needs to be proffessionally unlocked by someone with the correct software.
8. Cam Saxperience Post Whore Joined: Nov 2010 Kent Posts: 8439 Gen 7 Celica 190.

   #8 6th December 2011, 18:53

   Quote:

   Originally Posted by stevo67 It needs to be proffessionally unlocked by someone with the correct software.

   Like me
9. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #9 6th December 2011, 18:59

   Quote:

   Originally Posted by Cam Like me

   If you say so
10. Josh-G Infrequent Poster Joined: Oct 2011 Rotherham Posts: 150

    #10 7th December 2011, 16:35

    Its because your new key has the wrong chip in it for the immoboliser, if you take the steering wheel cowling off around the end of the barrel is the code reader, if you remove that off the barrel and put your old key inside it and start the car with your new key, (it should then start) once its running under the passenger side of the dash behind the fuse box there will be a little black box for the immoboliser, unplug that and then turn the car off, that will deimmobolise the ecu which is all they do when unlocking. The car should start with your new key without the old key being in the code reader, if not itl cost you £100-£125 to have the ecu unlocked as its a 3 plug, hope this helps