Introduction

This CD contains the electrical circuit diagrams for all standard models built in the model years 1993 to 2007. The CD does not include electrical circuit diagrams for special vehicles.
Model years 1974 to 1993 are covered by a separate circuit-diagram CD.

As in the past, this circuit-diagram CD is supplementary to the applicable repair manuals.

Along with the basic electrical circuit diagrams, which show only the basic versions of the electrical systems, the CD also contains the electrical circuit diagrams for genuine BMW Motorrad optional extras.

Notes on working with the circuit diagrams:

Each component has its own standardised code letter, plus a serial number.
The Component assignment table below explains the code letters and tells you which letters are used for which components.

Each circuit diagram is accompanied by a components list, in which the individual components are listed alphanumerically by code letter and serial number.

Example:
Component assignment

Code letter | Type of component | Examples
A | Construction groups, subgroups | Control units, ignition control units, instrument cluster
B | Sensors | Fuel-level sensor, ABS sensor
E | Various | Lighting systems, heating systems
G | Power supply | Battery, alternator
H | Signalling systems and indicators | Warning lights, telltale lights, horn and alarm siren
K | Relays | Relay
L | Coils | Ring aerial of the electronic immobiliser
M | Motors | Starter, fuel pump
N | Amplifiers, regulators | Thermostatic switching device
P | Metering instruments, testers | Rev. counter, speedometer
R | Resistors | Heated handlebar grips
S | Switches | Hazard warning flashers, direction-of-travel switch, brake-light switch
T | Transformers | Ignition coil
V | Semiconductors | Diode
X | Terminals, plugs, sockets | Port for optional extras, test plug, plug
Y | Electrically actuated mechanical devices | Solenoid valves