Subaru Impreza 2002 Service Manual page 12

BASIC DIAGNOSTICS PROCEDURE
WIRING SYSTEM
Abbr.
6. CONNECTOR SKETCH
Each connector sketch clearly identifies the
shape and color of a connector as well as terminal
locations. Non-colored connectors are indicated in
natural color.
When more than two types of connector number
are indicated in a connector sketch, it means that
the same type connectors are used.
7. GROUND
Each grounding point can be located easily by re-
ferring to the corresponding wiring harness.
8. DIODE
A symbol is used to indicate a diode.
9. WIRE TRACING ON EXTENDED WIRING
DIAGRAMS
For a wiring diagram extending over at least two
pages, a symbol (consisting of the same characters
with arrows), facilitates wire tracing from one page
to the next.
A t - + A, B
++
B
10.SYMBOLS OF WIRE CONNECTION AND
CROSSING
Full name
Symbol
+
N C
AD
N S
AT
AU
+B
Symbol
-I-
Air Conditioning
Auto Down
Air suspension
Automatic Transmission
Auto Up
Battery
Refers to wires which are con-
nected and branched at the
"dot" point.
Refers
to
wires which are
crossed but not connected.
B6M0750A
MIB
MG
~~~
11 .POWER SUPPLY ROUTING
A symbol is used to indicate the power supply in
each wiring diagram.
"MB-5", "MB-6", etc., which are used as power-
supply symbols throughout the text, correspond
with those shown in the POWER SUPPLY ROUT-
ING in the wiring diagram.
Accordingly, using the POWER SUPPLY ROUT-
ING and wiring diagrams permits service personnel
to understand the entire electrical arrangement of a
system.
Main Fuse Box
Maanet
ST
sw
I
ACC
I
Accessory
I
Starter
Switch
UP
WASH
I
DN
1
Down
I
UP
Washer
E
I
Ground
F/B
I
Fuse &Joint Box
I
FLI .5
I
Fusible link
1.5
mm2
IG
I
lanition
I
Illumi.
I
Illumination
I
I
LH
I
Left Hand
I
Lo
I
Low
M
I
Motor
r
Mi
I
Middle
I
OP
I
Optional Parts
PASS
1
Passing
RH
I
Right Hand
SBF
I
Slow Blow Fuse
WI-I 1