DME control module

New functions of the engine management system are:

• As of 08/2007: intelligent alternator control
• as of 08/2007: Automatic engine start-stop

There are 3 other sensors on the board in the DME control module: a temperature sensor, an ambient-pressure sensor as well as a voltage sensor. The temperature sensor provides thermal monitoring of the components in the DME control module. The ambient pressure is required for calculation of the fuel trim composition. The ambient pressure falls the higher you go above sea level. The voltage sensor on the board of the DME control module monitors the power supply via terminal 87.

The DME control module is connected with the vehicle electrical system via the engine wiring harness and vehicle wiring harness (3 connector chambers).

The DME control module is connected via the PT-CAN (Powertrain CAN) across a gateway with the remaining bus system. The gateway is the junction box electronics (JBE).

Fig 1: Identifying DME Control Module And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.