New System Components / Functions
MS5.1 Engine Control Module: The ECM is located in the under hood E box (below). The following modified controls / functions have been made to MS45.1 for use in the E60.
- New hot film air mass sensor (HFM).
- Changed data record variant (matched to E60).
- Lead to the CAS for start enable (starting relay is integrated in the CAS). (automatic/SMG transmissions only).
- The Driving Dynamics control (FDC) signal is transmitted via the PT-CAN.
- The cruise control (FGR) signal is sent from the MFL via the PT-CAN to the ECM.
- Connection of the intelligent battery sensor (IBS) to the bit-serial data interface (BSD).
- The software for power management (vehicle electrical system) is integrated in the ECM.
- The A/C compressor is activated via the PT-CAN.
- Fault diagnosis is performed through the SGM via the PT-CAN to the ECM.
- Activation of the ECM main relay (525i / 530i in E box, 545i in IVM).
- Bosch LSU 4.2 linear lambda oxygen sensors (pre-catalyst as in N62).
- Mini hot film air mass sensor (HFM) in the secondary air system.
The 134 pin ECM is manufactured by Siemens to BMW specifications. The ECM is the SKE (standard shell construction) housing and uses 5 modular connectors. For testing, use the Universal Adapter Set (break-out box) Special Tool # 90 88 6 121 300.