BMW 1 Quiz
Electrical Circuit Diagrams

Engine control system and control module connector. 520i, 523i, 528i models

In this manual: Electrical Circuit Diagrams
Introduction — 10Owner's Manual — 29Routine Care and Maintenance — 30Engine — 18Cooling and Heating Systems — 13Fuel and Exhaust Systems — 29Engine Electrical Equipment — 20Manual Transmission — 4Automatic Transmission — 4Clutch and Drive Shafts — 12Brake System — 19Suspension and Steering — 22Body — 36Body Electrical Equipment — 34Electrical Circuit Diagrams — 30On-board diagnostic system — 5
~1min read
Пояснения к схеме

Circuit diagram notes

Обозначения цветов на схемахОбозначения цветов на схемах

Wire color codes

BL Blue
BR Brown
EL Ivory
GE Yellow
GN Green
GR Gray
NF Natural
OG Orange
RS Pink
RT Red
SW Black
VI Violet

Test yourself

A quick BMW 1 quiz: every answer comes with an explanation and a link to the manual page.