The purpose of this manual is to show electrical schematics in a manner that makes electrical troubleshooting easier. Electrical components which work together are shown together on one schematic. Within the schematic, all switches and sensores are shown “at rest” as though the ignition switch were off. 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, splice location views.
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http://www.e30.eu/tech/E30_tsmanual.pdf