The list of ECUs used in all models and brands of cars is very extensive and specialized. ECUs are electronic units often developed for specific models and systems, and each car manufacturer can have hundreds of different types of ECUs.
To give you an idea, below I’ve provided some of the main categories and examples of ECUs used by various manufacturers, along with some well-known brands:
Volkswagen Group (VW, Audi, Skoda, Seat)
- MED17, MED9, SIMOS: Gasoline engines.
- EDC15, EDC16, EDC17: Diesel engines.
- DSG Mechatronic: Dual-clutch transmissions.
- Bosch Motronic: General use in engines.
BMW
- MSD81, MSD85: Gasoline engines.
- DDE (Digital Diesel Electronics): Diesel engines.
- EGS (Electronic Gearbox System): Automatic transmissions.
- FRM (Footwell Module): Controls lights and other comfort functions.
- CAS (Car Access System): Manages the start system and keys.
Mercedes-Benz
- ME-SFI (ME2.7, ME9.7): Gasoline engines.
- EDC16, EDC17: Diesel engines.
- VGS (Transmission Control Unit): Automatic transmissions.
- SAM (Signal Acquisition Module): Controls the vehicle’s electronic functions.
General Motors (Opel, Chevrolet, Cadillac)
- Multec, Delco ECM: Gasoline engines.
- EDC16: Diesel engines.
- TCM (Transmission Control Module): Automatic transmissions.
- BCM (Body Control Module): Manages body functions.
Ford
- EEC-V, EEC-VI: Gasoline engines.
- SID: Diesel engines.
- PCM (Powertrain Control Module): General use in engines and transmissions.
- GEM (Generic Electronic Module): Controls the vehicle’s electronic functions.
Toyota
- Denso ECU: General use in gasoline and diesel engines.
- Hybrid Control ECU: Manages hybrid systems.
- ETCS-i (Electronic Throttle Control System with intelligence): Controls the throttle system.
Fiat-Chrysler (FCA)
- Marelli ECU: Used in various engines.
- NAG1 TCU: Automatic transmissions.
- BCM: Manages body functions.
Renault-Nissan
- Siemens EMS: Gasoline engines.
- EDC16: Diesel engines.
- TCM: Automatic transmissions.
Honda
- PGM-FI (Programmed Fuel Injection): Gasoline engines.
- i-DSI (Intelligent Dual and Sequential Ignition): Gasoline engines.
- TCM: Automatic transmissions.
Hyundai-Kia
- KEFICO ECU: General use in gasoline and diesel engines.
- TCM: Automatic transmissions.
- BCM: Manages body functions.
These ECU categories are just the tip of the iceberg, as large automakers can have dozens or hundreds of different control units to manage specific systems and functions across their various models.
