Ground, Power & Input/Output Circuits

Testing information is not available from manufacturer. See WIRING DIAGRAMS article to identify DME/Motronic control unit ground circuits, power circuits and input/output circuits. See Fig 1-Fig 4 . See DME PCM CONTROL UNIT LOCATION table.

Fig 1: Identifying PCM 88-Pin Connector (E36/7)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Identifying PCM 9-Pin Connector

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Fig 3: Identifying PCM 24-Pin Connector

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Fig 4: Identifying PCM 40-Pin Connector

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Fig 5: Identifying PCM 52-Pin Connector

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DME PCM CONTROL UNIT LOCATION

Application

Location

3-Series

E46

Inside Box On Left Rear Corner Of Engine Compartment

In Right Rear Side Of Engine Compartment

All Others ⁽¹⁾

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

⁽¹⁾	V12 engine utilizes 2 PCM units.