System Groups - Saab 9000 1995 Service Manual

6 General information
Fault diagnosis with the aid
of wiring diagrams
Introduction
The wiring diagrams differ significantly from the lay-
out previously used in Saab 9000 service manuals.
The layout is the same as in "3:2 Electrical system,
wiring diagrams M1994" for Saab 900 cars.
In the following pages we will explain in greater de-
tail how the wiring diagrams are drawn up and how
to read them.
System groups
The wiring diagrams belong to various system
groups on the following pattern:
• P Power Supply Systems
• E Engine Systems
• L
Lighting Systems
• V Visibility Systems
• I Instrumentation Systems
• W Warning Systems
• C Comfort Systems
• S Safety Systems
Within the system groups the wiring diagrams are
then denominated with a letter (for the system
group) and a number.
The first wiring diagram in the "Engine systems"
group is "E1 Starting and charging systems" and the
last is "E? TCS".
A complete list of. all system groups and their sys-
tems is found in the next heading.
Saab 9000