"1994 BMW 840Ci, 850Ci, 850CSi (E31) Electrical Troubleshooting Manual Supplement # 2" Written for BMW dealership mechanics, this book will help you troubleshoot or diagnose electrical problems. You will find electrical circuit diagrams broken down so that you can perform specific tests. Look for troubleshooting maps and/or diagnostic trees designed to take you through the process of finding your problem step by step. The specifications in this book will help you to understand connector configurations, and locate & identify harnesses, circuits, relays, and grounds. In many cases, this type of book can be used in place of a wiring diagram--and may have been by the factory. This book covers the drive-away protection system including the starter immobilization relay for vehicles produced after 3/94. Refer to the 1994 8-Series Electrical troubleshooting manual for all other systems. This manual covers US and Canadian 1994 BMW 840Ci, 850Ci, and 850CSi models. This book measures 12 in. x 12 in. and is 3.5 in. thick. Buy now for the best electrical information available.
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