System Overview ME 7.0
ME 7.0 (Motronic, Electronic-gas 7.0) is a further development of Motronic 4.4 and has many similarities to DENSO EMS regarding components and their functions.
ME 7.0 on all B52X4T engines from model year 1999.
The biggest new feature regards the communication between the ECM and other modules, which occurs via network.
The system has other new features:
- ETS (Electronic Throttle System) that includes ETM (Electronic Throttle Module) and APM (Accelerator Pedal Module)
- CVVT (Continuously Variable Valve Timing)
The following modules communicate by ECM via the network:
- TCM (Transmission Control Module)
- ETM (Electronic Throttle Module)
- ABS (Antilock Braking System)
- CDM (Can and Driver information Module)
- DLC (Diagnostic Link Connector)
ME 7.0 contains sensors that operate according to the previously known principles and sends its information by analog signals to the ECM.
As applies to controlled components these also function to known principles, with a few exceptions. These exceptions are covered on the following pages.
For more information about the electronic throttle unit system and related components such as the throttle unit, accelerator pedal sensor, stop lamp switch, clutch pedal sensor switch and brake pedal position sensor, see Design and Function .