JC Cars (Home of ECU Connection) - 143 C&D Sprowston road, Norwich NR3 4QQ Tel: Office: (01603) 733863 / Workshop - (01603) 784111



Citroen / Peugeot

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You can now view & place orders for all of our programming services - you can also search our database of thousands of ECUs, BCMs, Clusters etc for sale

Peugeot Citroen Diagnostics

 We regularly undertake vehicle diagnostics and specialist electronic repairs including electronic control module replacement to Citroen & Peugeot vehicles. We are fully equipped with 'Peugeot Planet / Citroen Lexia diagnostic equipment and can perform coding operations to main dealer level. If you have an ECU fault with your Peugeot / Citroen you will be aware that you cannot simply replace your faulty ECU with a secondhand unit as they are programmed (Locked) to your immobiliser system along with the BSI (Body control module). However we are able to re-program a secondhand ECU or BSI by transferring the data files from your original faulty unit. This is known as 'Bench programming' or 'cloning' the donor unit will then simply 'plug & play' with no further programming necessary using your original keys and displaying its correct mileage. We have hundreds of ECU's in stock, please call us to see if we have one available. If we don't have a unit in stock or if you have already purchased a secondhand unit & need us to program it to your car we offer an ECU 'cloning' service. ECU cloning starts at 50+vat - Call us for more information and advice on how we can help you with your requirements.
Peugeot Citroen Ecu Programming

ECU's we regularly replace:

Bosch M/ME7.4.4 Series

Bosch ME7.4.5 Series

Siemens SID Series

Bosch EDC15 Series

Marelli IAW48P Series

Delphi DDCR Series

Lucas DCN2 Series

Bosch MA3 Series

Siemens / JC J34P Series

Sagem S2000 Series

Bosch EDC16 Series

Marelli IAW6LP Series

DDCR Short series


Early SID series



Mail order service available

Peugeot Citroen Body Control Modules (BSI) Programming

Peugeot / Citroen BSi programming
Among the more common failing items on Peugeot /Citroen vehicles is the Body control module or as its commonly known as a BSi - this control module is responsible for the controls of various functions in the vehicle starting with remote central locking control, immobiliser data, Electric windows and various other power supplies. If you are looking for information on how to replace the BSi on Peugeot / Citroen vehicles then you have found the right place! Firstly you will need to know that you cannot simply replace a faulty BSi with a secondhand unit from a breakers yard / Ebay etc as they are programmed to the vehicles immobiliser system, furthermore the vehicle mileage is stored not only in the vehicles instrument cluster but it is also logged in the BSi - If you plug in a secondhand BSi that has higher mileage than your vehicle it will 'overwrite' the mileage onto your cluster leaving you with a higher mileage reading! - We have the solution!. Depending on which BSi is fitted to your car there is 2 different ways we can re-program a secondhand BSi for re-use. Firstly on some models we can 'clone' your original car data from your old BSi to a replacement unit - the donor unit will then plug straight into your car & work with no changing of the car mileage or any need for further programming necessary - The second option is to 'Virginise' the replacement BSi to an 'As new' state - this will then need programming to your vehicle using diagnostic equipment such as 'Peugeot Planet' / Citroen Lexia or 'Autologic' - We have large stocks of BSi units ready for dispatch in virgin state or 'ready for cloning' - Please call us for more information on how we can help replacing your Bsi unit.

Manufactured by: Siemens - Valeo - Johnson Controls & Sagem

Mail order service available

Peugeot / Citroen mileage correction

 We get many enquiries from Peugeot / Citroen owners that have had had problems with their vehicle needing Engine ECU or BSi replacement - unfortunately they have been badly advised to fit an ECU 'kit' from a breakers yard or Ebay etc, the problem this method of repair causes is that the vehicle mileage is stored in the BSi & if it is a higher value then the BSi will overwrite the cluster mileage display - We can correct this! - we will need to either be sent the BSi & the cluster to correct it or have the vehicle brought to us for correction - Please call for further details on how we can correct the mileage on your Peugeot / Citroen vehicle.

Mail order service available

Peugeot Citroen Keys & Immobiliser PIN retrieval

 We can cut & program keys for most models of Peugeot / Citroen vehicles at our workshop on Sprowston rd Norwich while you wait - or alternatively we have a mobile key cutting & programming service throughout Norfolk if you are unable to bring the vehicle to us (We can even make & program new keys if you have lost all of your keys).
 If you need to program new keys to a Peugeot / Citroen Vehicle you will need to know the 4 digit immobiliser 'PIN code' - this is supplied with the vehicle when supplied new and looks like the image on the left - Sadly these often get lost and even worse if the car has had an ECU 'kit' replaced the PIN supplied with the vehicle will not work with the new kit fitted - We can extract the PIN code for your vehicle from the BSI or in some cases the engine ECU - Please call for information how to retrieve the pincode or perform key coding for your Peugeot / Citroen vehicle.

Mail order service availab;e

Peugeot Display repair

 Do you have a Peugeot 206 with a faulty clock / radio display? Usual faults are missing pixels or completely blank display - we can fix this! Simply send us your faulty unit and we will fully strip & refurbish your faulty unit. Items replaced include: bulb connector often broken from circuit board, blown bulbs replaced and most importantly a new ribbon connector fitted between the circuit board and LCD display, refurbished units are tested on our test rig before dispatch, call for more info & to book a repair.

Mail order service available

Peugeot Airbag Crash data removal

 We can remove crash data from most airbag control units fitted to Peugeot / Citroen vehicles. Crash data needs to be removed from SRS control units after a car has had collision and a safety feature has been activated such as seat belt pre-tensioners, airbags, fuel cut-off systems etc. This usually appears as the airbag warning light being illuminated and fails to extinguish when garages try to clear fault codes with a standard diagnostic scanner. Simply remove your airbag control unit, bring it to us for stripping and re-programming and usually it will be ready for collection within 24 hours. Crash data removal starts from 40+vat - please call for more info

Mail order service available

Ebay shop

 We have large stocks of Peugeot/ Citroen 'Plug & Play' ECU's & 'Plug & Play' or 'virginised' (Ready for programming with Peugeot Planet - Citroen Lexia) Body control modules etc for sale - tested & warranted for 3 months. Fast mail order throughout Europe! Call us anytime or check out our items on Ebay. We accept Paypal & card payments. For fast overnight delivery & information on our latest stock not listed on Ebay please call us...

Mail order service available

Models covered:
Peugeot: 107, 108, 206, 207, 208,  306, 307, 308, 406, 407, 508, 605, 607, 806, 807, 1007, 2008, 3008, 4007, 4008, 5008, Bipper, Boxer, Expert, Partner.
Citroen: C1, C2, C3, C4, C5, C6, C8, DS3, DS4, DS5, Aircross, Berlingo, Elysee, Evasion, Jumpy, Picasso, Saxo, Synergie, Xantia, Xsara



Full or part Payments accepted on vehicle purchases & servicing with credit & debit cards 


(01603) 784111 - (07799) 492517

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