Immobiliser fault

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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okehdokeh
1.8 16v
Posts: 56
Joined: Tue Aug 25, 2015 7:44 pm

Immobiliser fault

Post by okehdokeh »

I've not been on here for a while, mainly due to the 406 behaving itself but today after disconnecting the battery for an alternator swap I now have the immobiliser fault on the display.
All the usual tricks tried with the BSI reset etc but still showing the fault. I thought I'd left the car long enough before disconnecting the battery but obviously not :(
Could anyone tell me if an unlocked ECU would be a straight cure for this problem or am I looking at the BSI to be re-coded to the key etc.
I have no PP2000 and wondered if there was anyone in the Hinckley/Leicester area that could do this for me, I'd gladly pay them for their time and make lots of tea if so :P

Thanks, Paul.
okehdokeh
1.8 16v
Posts: 56
Joined: Tue Aug 25, 2015 7:44 pm

Re: Immobiliser fault **NOW SORTED**

Post by okehdokeh »

A really big thank you to dirtydirtydiesel for helping me out with this, it's reassuring to know there's some great people out there, enthusiastic too!
The dogs will be up the fields again tomorrow now Doris is back on the road. Thanks ddd :D :D :D
frog
2.0 Turbo
Posts: 378
Joined: Sun Aug 24, 2014 12:18 pm
Location: Netherlands

Re: Immobiliser fault

Post by frog »

Nic! :D How did you manage to solve this issue? By fitting a new transponder antenna?
Current "fleet":
2003 406 Estate 2.0HDi 110 - 7 seater - just hit 690.000 kms :cheesy:
2001 Citroen Saxo 1.6i 8v 100

Previously owned:
2000 406 Sedan 2.0 HDi 90
2000 406 Coupé 2.0i 16v 138 - Riviera Blue

PP2000 user, can help with faults / diagnostics in the Netherlands.
okehdokeh
1.8 16v
Posts: 56
Joined: Tue Aug 25, 2015 7:44 pm

Re: Immobiliser fault

Post by okehdokeh »

frog wrote: Thu Feb 24, 2022 8:51 am Nic! :D How did you manage to solve this issue? By fitting a new transponder antenna?
Hi Frog, the antenna was okay although I have got one coming to keep as a future spare. I had disconnected the battery too soon after switching the ignition off (for an alternator change) and lost the key code. Dirtydirtydiesel kindly made the round trip to re-code the keys to the BSI for me so am really grateful to him.

Paul
frog
2.0 Turbo
Posts: 378
Joined: Sun Aug 24, 2014 12:18 pm
Location: Netherlands

Re: Immobiliser fault

Post by frog »

okehdokeh wrote: Thu Feb 24, 2022 9:31 amDirtydirtydiesel kindly made the round trip to re-code the keys to the BSI for me so am really grateful to him.
Wow, he came to your place and fixed the BSI? Cool! How did he re-code the keys to the BSI? Can that be done "simply" using PP2000? Or does it require unsoldering and reprogramming the BSI EEPROM chip?
Current "fleet":
2003 406 Estate 2.0HDi 110 - 7 seater - just hit 690.000 kms :cheesy:
2001 Citroen Saxo 1.6i 8v 100

Previously owned:
2000 406 Sedan 2.0 HDi 90
2000 406 Coupé 2.0i 16v 138 - Riviera Blue

PP2000 user, can help with faults / diagnostics in the Netherlands.
okehdokeh
1.8 16v
Posts: 56
Joined: Tue Aug 25, 2015 7:44 pm

Re: Immobiliser fault

Post by okehdokeh »

frog wrote: Thu Feb 24, 2022 10:05 am
okehdokeh wrote: Thu Feb 24, 2022 9:31 amDirtydirtydiesel kindly made the round trip to re-code the keys to the BSI for me so am really grateful to him.
Wow, he came to your place and fixed the BSI? Cool! How did he re-code the keys to the BSI? Can that be done "simply" using PP2000? Or does it require unsoldering and reprogramming the BSI EEPROM chip?
Yep it was really good of him to help me out Frog, it was done using PP2000. I am not very techy but am on the lookout for a good used PP2000 as I'm intending to keep the car for a long time and need to learn this stuff.
dirtydirtydiesel
3.0 24v
Posts: 1521
Joined: Sun Apr 28, 2013 11:02 pm
Location: Coalville, Leics.

Re: Immobiliser fault

Post by dirtydirtydiesel »

frog wrote: Thu Feb 24, 2022 10:05 am
okehdokeh wrote: Thu Feb 24, 2022 9:31 amDirtydirtydiesel kindly made the round trip to re-code the keys to the BSI for me so am really grateful to him.
Wow, he came to your place and fixed the BSI? Cool! How did he re-code the keys to the BSI? Can that be done "simply" using PP2000? Or does it require unsoldering and reprogramming the BSI EEPROM chip?
Hi frog,

How are you? Keeping well I hope.
I still haven't got to the bottom of the airbag issue (but to be fair I haven't tried for over a year :oops: )

okehdokeh's problem was very straightforward,
he had just disconnected the battery before the bsi had gone to sleep,
so I needed to input the four digit security key code via pp2000.
2002 110 HDi estate, Rapier in monaco blue! ( found quite a bit more power :cheesy: ) SOLD I've sorted the airbag light :cheesy:
1998 3.0 V6 SE coupe in Diablo Red ( my baby ) sold
2006 206 1.4 16v sport in Aegean blue ( wife's shopping trolley :roll: )

2006 BMW e61 535d m-sport :supafrisk: run's for cover :lol:
frog
2.0 Turbo
Posts: 378
Joined: Sun Aug 24, 2014 12:18 pm
Location: Netherlands

Re: Immobiliser fault

Post by frog »

dirtydirtydiesel wrote: Thu Feb 24, 2022 6:15 pm Hi frog,

How are you? Keeping well I hope.
I still haven't got to the bottom of the airbag issue (but to be fair I haven't tried for over a year :oops: )
All fine here, I guess weeds never perish :D How are you doing? Hope all is fine!

Such a pity about the airbag, I wish I could help you more here. If you need any more information I can look up for you, please let me know!
Current "fleet":
2003 406 Estate 2.0HDi 110 - 7 seater - just hit 690.000 kms :cheesy:
2001 Citroen Saxo 1.6i 8v 100

Previously owned:
2000 406 Sedan 2.0 HDi 90
2000 406 Coupé 2.0i 16v 138 - Riviera Blue

PP2000 user, can help with faults / diagnostics in the Netherlands.
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