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Ground, Power & Input/Output Circuits

WARNING: This page does not describe the selected car, but rather 37 other vehicles, including the 2005 BMW 760i, 2004 BMW 760Li, 2003 BMW Z8, 2003 BMW Z4, and 2003 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

See PIN VOLTAGE CHARTS article to identify DME control unit ground circuits, power circuits and input/output circuits. To identify DME/ECM connector terminals, see Fig 1-Fig 4 . See DME CONTROL UNIT LOCATION table.

Fig 1: Identifying DME/ECM 88-Pin Connector (Z3 Only)

G98J11311

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Identifying DME/ECM 9-Pin Connector

G99I05493

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Identifying DME/ECM 24-Pin Connector

G99A05494

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 4: Identifying DME/ECM 40-Pin Connector

G99F05496

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 5: Identifying DME/ECM 52-Pin Connector

G99D05495

Courtesy of BMW OF NORTH AMERICA, INC.

DME CONTROL UNIT LOCATION

Application

Location

3-Series

Z3

In Right Rear Side Of Engine Compartment

All Others

Inside Box On Left Rear Corner Of Engine Compartment

All Others ⁽¹⁾

Inside Box On Right Rear Corner Of Engine Compartment, Behind Strut Tower

⁽¹⁾	V12 engine utilizes 2 ECM units in electronic box.