Peugeot/Citroen Replacing Electronic Control Units

When replacing ECUs in PSA cars the newly installed ECU must be properly configured and for specific ECUs also immobilizer matched.


PSA-COM supports visual configuration on many ECUs. Print original configuration and reconfigure the newly installed ECU according to original ECU data.


BSI (Body systems integration), INJ (injection ECU) and BVA/TCM (transmission control ECU) mostly require immobilizer to be matched. Immobilizer in PSA vehicles is synchronized using "PIN" code (4 digit alpha-numeric value). PSA-COM supports PIN change procedure in most BSI ECUs.

If you run into any troubles or require additional immobilizer coding procedures, please contact us at moc.snoces|troppus#moc.snoces|troppus