General
The supplies provided in the car are designated "+", followed by a digit combination. Some of these supplies are live only on certain occasions, such as when the engine is being started or when the car is travelling.The following positive supplies are provided: +30, +x, +is, +54, +50 and +5. The +30 supply is taken directly from the battery, and the components supplied from "+30" are therefore permanently energized. The other supplies are taken from the ignition switch and are dependent on the ignition switch setting.
Note that the numerals in the designations have nothing to do with the system voltage.
Ignition switch
The ignition switch has four positions:
L Locked position
P Parked position
0 Drive position
S Start position
The table shows the ignition switch terminals which are live in the various positions of the ignition switch. The incoming supply (+30) from the battery is connected to terminal 30.
Terminals Of The Ignition Switch:
U.S.A. and Canadian markets
On these cars, terminal S is used for the ignition key warning system. The terminal is always energized when the key is in the ignition switch, regardless of its position.
Distribution terminals
The following four spreads show the consumers/components that are supplied from the following distribution terminals:
Distribution terminal +30
Distribution terminal +X
Distribution terminal +15
Distribution terminal +54
The various consumers are supplied either directly or across fuses.
The wiring diagrams show all components which are supplied from each distribution terminal. Some components are thus not included on certain markets/ versions.
No wiring diagram is shown for distribution terminal +50, since this is used only for a few sub-systems. The terminal is live only when the ignition switch is in the start position, and this is described in the corresponding sub-system description. For particulars of distribution terminal +S, see the Seat-belt and ignition switch warning system in the section entitled Instrument and warning systems.