Subaru Legacy III (2000-2003 year). Service manual — part 1011
IM-28
IMMOBILIZER (DIAGNOSTICS)
DIAGNOSTIC PROCEDURE WITH TROUBLE CODE (DTC)
7
CHECK IGNITION KEY (TRANSPONDER).
1) Remove key from ignition switch.
2) Start engine using other keys that have
undergone the teaching operation, fur-
nished with vehicle.
Does engine start?
Engine starts.
Replace ignition
key (including the
transponder).
Then perform
teaching opera-
tion. Refer to
teaching opera-
tion manual (Pub.
No. S0820GZ).
Replace IMM ECM
<Ref. to SL-36,
Immobilizer Con-
trol Module.> and
then replace all
ignition keys
(including the tran-
sponder). Then
perform teaching
operation. Refer to
teaching opera-
tion manual (Pub.
No. S0820GZ).
Step
Value
Yes
No
FUJI HEAVY INDUSTRIES LTD.
G2300GE8
2003 LEGACY SERVICE MANUAL
QUICK REFERENCE INDEX
WIRING SYSTEM SECTION
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
All information, illustration and specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.
WIRING SYSTEM
WI
Page
Basic Diagnostics Procedure . . . . . . . . . . . . . . . . . ..3
Working Precautions . . . . . . . . . . . . . . . . . . . . .12
Super Multiple Junction (SMJ) . . . . . . . . . . . . . . . . ..13
Power Supply Routing. . . . . . . . . . . . . . . . . . . ...16
Ground Distribution . . . . . . . . . . . . . . . . . . . . ...30
Airbag System. . . . . . . . . . . . . . . . . . . . . . ...52
Air Conditioning System. . . . . . . . . . . . . . . . . . . 62
Anti-lock Brake System . . . . . . . . . . . . . . . . . . . .82
A/T Control System . . . . . . . . . . . . . . . . . . . . ...92
Audio System . . . . . . . . . . . . . . . . . . . . . . ..118
Charging System. . . . . . . . . . . . . . . . . . . . . .125
Combination Meter. . . . . . . . . . . . . . . . . . . . ..126
Cruise Control System . . . . . . . . . . . . . . . . . . . 142
Engine Coolant Temperature Gauge System . . . . . . . . . . .158
Engine Electrical System . . . . . . . . . . . . . . . . . . 160
Fuel Gauge System . . . . . . . . . . . . . . . . . . . . 228
Full-Time Dual-Range System . . . . . . . . . . . . . . . . 232
Front Accessory Power Supply System . . . . . . . . . . . . ..233
Headlight Beam Leveler System. . . . . . . . . . . . . . . .234
Horn System . . . . . . . . . . . . . . . . . . . . . . ...235
Immobilizer System. . . . . . . . . . . . . . . . . . . . .236
Keyless Entry System . . . . . . . . . . . . . . . . . . . .240
Muffler Actuator Control System . . . . . . . . . . . . . . . .246
Back-up Light System . . . . . . . . . . . . . . . . . . . .247
Clearance Light and Illumination Light System . . . . . . . . . ...248
Front Fog Light System. . . . . . . . . . . . . . . . . . ...260
Headlight System . . . . . . . . . . . . . . . . . . . . . 264
In Compartment Light System. . . . . . . . . . . . . . . . .266
Stop Light System . . . . . . . . . . . . . . . . . . . . ...272
Turn Signal Light and Hazard Light System. . . . . . . . . . . 274
Oil Pressure Warning Light System . . . . . . . . . . . . . . 278
Outside Temperature Display System . . . . . . . . . . . . . 279
Parking Brake and Brake Fluid Level Warning System . . . . . . ..280
Power Seat System. . . . . . . . . . . . . . . . . . . . .281
Power Window System . . . . . . . . . . . . . . . . . . ...282
Radiator Fan System . . . . . . . . . . . . . . . . . . . ..290
Rear Accessory Power Supply System. . . . . . . . . . . . ...293
Rear Fog Light System . . . . . . . . . . . . . . . . . . ...294
Rear Window Defogger System. . . . . . . . . . . . . . . ..296
Remote Controlled Rearview Mirror System. . . . . . . . . . ...298
Seat Belt Warning System . . . . . . . . . . . . . . . . . ..300
Seat Heater System . . . . . . . . . . . . . . . . . . . . 304
Starter System . . . . . . . . . . . . . . . . . . . . . . 305
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