How to Use the Wiring Diagrams

How To Use The Wiring Diagram













A. Component description

For each component there is a component description. As a rule it consists of a type number and a component number.

At the end you there is a list of components that allows you to look up the component name using the descriptions. Diagram Legend

B. Type number

The first part of the component description concerns the type of component specified, e.g. switch unit, electric motor, etc.

List of type numbers:

1 Battery
2 Relay
3 Switch unit
4 Control unit
5 Combination instrument
6 Electric motor
7 Sensor
8 Actuator
9 Heating element
10 Lamp
11 Fuse
15 Distribution rail, power supply
16 Radio
17 Service/diagnosis
18 Contact reel
19 Indicating instrument
20 Ignition component/resistor
23 Junction point
24 Connector
31 Ground connection
34 Terminal block/brace
C Connector

C. Component number

The second part of the component description concerns the specific component itself, e.g. light switch, central locking motor, etc.

Table







Certain multi-way switches are described in this information according to a table; see example below. The table indicates when the various connections are electrically connected to one another.
E.g. in position III connection 30 is connected with connections 15A, S and 50.

D. Junction points

Junction points are numbered. This information contains a list of the various junction points, showing which other components the points are joined to. Electrical Diagrams

The location of the junction points is shown in the "Cable harness routing in vehicle". Harness Locations

E. Electrical distribution

The supply to the fuse is shown in "Electrical distribution". Electrical Diagrams

F. Abbreviations

A number of different abbreviations are used which are explained "Wire Color Code and Other Abbreviations". E.g. R-W = red-white. Wire Color Code Identification and Other Abbreviations


G. CAN communication

Disconnected wires are shown in their entirety in "Data communication". Electrical Diagrams

H. Components

This shows which positions the various wires can be connected to for each component.

J. Location of components

This shows where in the vehicle the components are located.

K. Connectors

Connectors linking the cable harnesses to each other are described in "Connector Views". Connector Views