x reg bsi pin out
#1
hi guys i need a pin out for an 2000 year hdi, bsi both plugs and a list of readings to be found on the pins.

hope i can get something other than the haynes manual
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#2
there's no bsi so that'll be why you can't find a pinout.

people call the alarm ecu/transponder box in a 306 a bsi for some reason, it looks nothing like a bsi found in other psa vehicles.
need a part number? http://public.servicebox.peugeot.com/ and http://service.citroen.com/ will sort you out.
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#3
Where would it be located, under the gear stick area ?
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#4
security module is in the lower dash behind the hazard switches ect

what info do you want with the pin out?

https://www.check-mot.service.gov.uk/
GTI6 Info

Don’t drive faster than your guardian angel can fly.

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#5
What i would really like to do is to knobble the central locking and disable the immobiliser to avoid all the real hassle with the central locking the car is going thru at the moment, the dam thing is even dead locking us in the car which could be really dangerous for us !

I realise that this info may be of use to the car thieving scum out there so a PM would be advisable ?

All help greatly appreciated.
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#6
if you have issues with the CL just don't lock it...
need a part number? http://public.servicebox.peugeot.com/ and http://service.citroen.com/ will sort you out.
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#7
try soft unlocking the ecu!
try starting the car and then unplugging the security unit both plugs see if this "soft unlocks" the ecu it will also disable the RF/central locking
if it fails you can always plug it back in

the other option would be to just unplug the central locking plug on the security unit

https://www.check-mot.service.gov.uk/
GTI6 Info

Don’t drive faster than your guardian angel can fly.

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#8
don't know what a soft unlocking means.......

also what colour would the central locking plug be on the security unit please ?

thanks cully.
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#9
legend for central locking

BMF1 : maxi fuse unit
CA00 : ignition switch
BH28 : passenger compartment fuse box /, 28 fuses
0004 : / instrument panel
B003 : mixed equipotential terminal 3
2320 : front left direction indicator
2340 : left-hand side repeater flasher
2325 : front right direction indicator
8630 : protection central unit
2630 : rear left lamp on body
C001 : diagnostic socket
6202 : driver's side front door lock assembly
6207 : front passenger side door lock assembly
6212 : rear left door lock assembly
6260 : boot or tailgate lock motor
6217 : rear right door lock assembly
2635 : rear right lamp on body

legend for imobilizer

bmf1 maxi fuise box in engine bay
CA00 : ignition switch
BH28 : passenger compartment fuse box /, 28 fuses
8630 : protection central unit
8220 : analogue module transponder
C001 : diagnostic socket
1211 : fuel pump - gauge assembly


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#10
(22-09-2018, 08:38 AM)pug306driver Wrote: don't know what a soft unlocking means.......

also what colour would the central locking plug be on the security unit please ?

thanks cully.

When you put your key in the ignition the immobiliser checks that the correct transponder is present in the key.  If it sees the transponder it sends a message to the ECU telling it that it's OK to start the car.

Soft unlocking occurs (as Cully said) when you unplug the ECU while the car is running. The ECU will then remain in an 'it's OK to start the car' condition until it is once again able to communicate with the immobiliser.  So to maintain the unlocked state you need to unplug the immobiliser/security unit before you try to start the car again and leave it unplugged.  i.e. your car is now without an immobiliser but if that's the cause of your no start issues you may be happy to live with it that way.

I've heard of people soft unlocking petrol models but not sure about the HDi's.  Am sure someone can confirm.

A hard unlock stops the ECU from trying to communicate with the immobiliser even when one is present/plugged in.  A hard unlock is usually done by specialist ECU diagnosis/repair companies.  The advantage is that the ECU can be used in any vehicle of the same model, even one with it's immobiliser unit still in place.  (The hard unlocked ECU doesn't seek a security code from the immobiliser, let alone the one it was originally paired with).  Take a soft unlocked ECU and plug it in to a different vehicle with its immobiliser unit in place and you're in trouble!
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#11
(21-09-2018, 01:45 PM)pug30 6driver Wrote: What i would really like to do is to knobble the central locking and disable the immobiliser to avoid all the real hassle with the central locking the car is going thru at the moment, the dam thing is even dead locking us in the car which could be really dangerous for us !

I realise that this info may be of use to the car thieving scum out there so a PM would be advisable ?

All help greatly appreciated.

Unplug the combined central locking and immobiliser after doing a soft unlock (assuming you can soft unlock an HDi ECU).  Only issue is you might not have a keyed lock for the boot.  (Some of them are CL only).  If that's the case you'd need to rig up a switch inside the car to operate the boot lock, with a fuse in the circuit.  You may also need to wire a relay in to the new circuit.

The info supplied to date wouldn't help car thieves.  They'd need the key and the car already running to do a soft unlock anyway.
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