55283481 / MJD9DF.B1 – ECU Engine Controller for Fiat 500 1.3 Multijet
Reset or IMMO OFF version – full functionality without coding
The ECU with part number 55283481 (Bosch MJD9DF.B1) is a dedicated engine controller for Fiat 500 vehicles equipped with the 1.3 Multijet engine. Each unit has been tested both on the diagnostic bench and in a test vehicle, ensuring proper operation and readiness for installation.
Depending on customer needs, we offer two preparation options: VIRGIN mode (fully reset unit, ready for self-adaptation) or IMMO OFF (immobilizer deactivated, no key synchronization required). In both cases, the ECU can be installed without any diagnostic tools – Plug&Play solution.
Additionally, we can implement software modifications such as CHIP TUNING for increased performance, EGR OFF for disabling the exhaust gas recirculation valve, and DPF OFF – deactivating the diesel particulate filter function. This is the perfect solution for those seeking a reliable and customized ECU setup for their vehicle.