Ground, Power & Input/Output Circuits
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 1999 BMW Z3, 1999 BMW M3, 1999 BMW M Roadster, 1999 BMW M Coupe, and 1999 BMW 740iL. However, it is still accessible from the selected car via links, so may be relevant.
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 5 . See DME PCM CONTROL UNIT LOCATION table.
DME PCM CONTROL UNIT LOCATION
| Application | Location | |
|---|---|---|
| 3-Series | ||
| E36 | Behind Cover On Right Rear Corner Of Firewall | |
| E46 | Inside Box On Left Rear Corner Of Engine Compartment | |
| All Others | Inside Box On Right Rear Corner Of Engine Compartment, Behind Strut Tower | |