The BMW M3 is a high performance BMW M GmbH version of the popular BMW 3-Series compact automobile. M3 models have been derived from the E30, E36, E46 and E90/E92/E93 3-series.

BMW E30 M3 Wiring Diagram Harness Schematics The following electrical wiring diagram, cable harness routing and troubleshooting manual apply for BMW M3 1987 model year. Here you will find detail explanation, description and illustration of the entire electrical system and parts components, wiring diagram, harness and cable routing, relays and connectors. This troubleshooting manual is divided into sections which are Index, How to Use This Manual, Symbols, Wire Size Conversion Chart, Systematic Troubleshooting, Connector Views, Power Distribution Box, Fuse Data, Component Location Chart, Component Location Views, and Splice Location Views.

This manual also covers following parts components: Power Distribution, Charging System, Starting System, Injection Electronics, Brake Warning System, Antilock Braking System, Central Locking, Power Windows, Sunroof, Body Electrical, Ignition Keys Warning and Seatbelt Warning, Wiper Washer, Instrument Cluster, Active Check Control, Headlights, Heating and Air Conditioning, Radio, Antenna, Cruise Control System, etc.

Find more information about 1987 BMW E30 M3 Electrical Wiring Diagram Cable Harness Routing and Troubleshooting here. (source:

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