Ground, Power & Input/Output Circuits
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1997 BMW Z3, 1997 BMW 840Ci, 1997 BMW 740iL, 1997 BMW 740i, and 1997 BMW 540i. 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 . See DME ECU CONTROL UNIT LOCATION table.
DME ECU CONTROL UNIT LOCATION
| Application | Location |
|---|---|
| 3-Series | Behind Cover On Right Rear Corner Of Firewall |
| All Others | Inside Box On Right Rear Corner Of Engine Compartment, Behind Strut Tower |