Engine Controls - Self-Diagnostics - Without Codes: Introduction: Notes

NOTE: For specific Diagnostic Trouble Code (DTC) testing, see DIAGNOSTIC TESTS article.

The Range Rover Petrol Engine Management System consists of the Bosch ME7.2 Engine Control Module (ECM) controlling the BMW 4.4L V8 M62 engine.

ME7.2 is a development of the Bosch M5.2.1 Engine Management System used on the Land Rover "Thor" V8 engine, the major difference being that ME7.2 is a "drive-by-wire" Engine Management system, i.e. ME7.2 has electronic throttle control.

Another significant system difference is the extensive use of a Controller Area Network (CAN) system to provide the interface to other vehicle systems.