LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> BMW >> 2004 >> M3 2D Convertible, S6S420G >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control - Overview - M3 >> Ms S54 >> System Components
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

System Components

MS S54 Engine Control Module:  The MS S54 ECM features a single printed circuit board with two 32-bit microprocessors.

The task of the first processor is to control:

The task of the second processor is to control:

Fig 1: Identifying MS S54 Engine Control Module
G03394636Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Identifying MS S54 Engine Control Module Connector Terminals
G03394637Courtesy of BMW OF NORTH AMERICA, INC.

The 134 pin MS S54 Engine Control Module is manufactured by Siemens to BMW M 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.

scientia non olet · About LEMON Manuals