The BMW Z3 was developed from the E36 platform of the 3 Series and introduced in 1996. The resulting platform is sometimes referred to as the E36/7(roadster) or E36/8 (coupé).
The following service article provides detail information about the BMW Z3 electrical system, wiring diagram, electrical schematics, circuit and harness routing. This article contains following parts/components schematics diagram: power distribution chart, fuse, ground distribution, data link, engine control system, charging system, start, e-box fan, electronic transmission control, supplemental restraint system, slip control, dynamic stability control, tire inflation system, tire pressure warning system, power mirror, ZKE central locking, ZKE power window, power seats, heated seats, power tilt sunroof, electro-hydraulic, central body electronic, wiper and washer module, headlight, analog clock, light switch details, instrument cluster, brake light, crash control module, radio/hifi, etc.
Find more information about 2001 BMW E36/7 Z3 | M Roadster Coupe Electrical Wiring Schematic Circuit Troubleshooting here – 367 pages of PDF file docs. (source: wedophones.com, wikipedia.com). Other BMW Automotive Wiring Diagram you might be interested in.