1997 SUBARU LEGACY contents

D: LIST OF TROUBLE CODES
1. TROUBLE CODES
Trouble code/Contents of troubles Memory function Contents of diagnosis Page
02 Provided.1) Front sensor harness is shorted.
2) Airbag main harness is shorted.
3) Airbag module harness (Dr/Ps) is shorted.
4) Roll connector is shorted.
5) Airbag control module is faulty.16
03 Provided.1) Front sensor harness circuit is open.
2) Front sensor unit circuit is open.18
04 Provided.1) Airbag main harness circuit is shorted.
2) Airbag module harness (Ps) circuit is shorted.
3) Airbag control module is faulty.19
11 Provided.1) Airbag control module is faulty.
2) Airbag main harness circuit is open.
3) Fuse No. 8 is blown.
4) Body harness circuit is open.20
12 Provided.1) Airbag main harness circuit is open.
2) Airbag module harness (Dr) circuit is open.
3) Roll connector circuit is open.
4) Airbag control module is faulty.22
13 Provided.1) Airbag main harness circuit is shorted.
2) Airbag module harness (Dr) is shorted.
3) Roll connector circuit is shorted.
4) Airbag control module is faulty.23
14 Not provided.1) (AB9) and (AB10) are not connected properly.
2) (AB2) and (AB7) are not connected properly.
3) (AB3) and (AB8) are not connected properly.
4) (AB4), (AB5) and (AB6) are not connected
properly to airbag control module.24
21 Provided. Airbag control module is faulty. 26
22 Provided.1) Airbag main harness circuit is open.
2) Airbag module harness (Ps) circuit is open.
3) Airbag control module is faulty.27
23 Provided.1) Airbag main harness is shorted to power supply.
2) Front sensor harness is shorted to power supply.
3) Airbag module harness (Dr/Ps) is damaged.
4) Roll connector is shorted to power supply.
5) Airbag control module is faulty.28
24 Provided.1) Airbag main harness circuit is open.
2) Airbag module harness (Dr) circuit is open.
3) Roll connector circuit is open.
4) Airbag control module is faulty.
5) Above diagnosis plus other faulty of airbag
modular parts.30
31 Not provided.1) Airbag control module is faulty.
2) Airbag main harness circuit is open.
3) Fuse No. 16 is blown.
4) Body harness circuit is open.32
32 Provided.1) Airbag main harness circuit is open.
2) Airbag module harness (Ps) circuit is open.
3) Airbag control module is faulty.
4) Above diagnosis plus other faulty of airbag
modular parts.34
NOTE: Dr: Driver side Ps: Passenger side
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5-5SUPPLEMENTAL RESTRAINT SYSTEM
4. Diagnostics Chart for On-board Diagnostic System

Trouble code/Contents of troubles Memory function Contents of diagnosis Page
Airbag warning light remains on. Not provided.1) Airbag warning light is faulty.
2) Airbag control module to airbag warning light
harness circuit is shorted or open.
3) Grounding circuit is faulty.
4) Airbag control module is faulty.
5) (AB1) and (B31) are not connected properly.36
Airbag warning light remains off. Not provided.1) Fuse No. 15 is blown.
2) Body harness circuit is open.
3) Airbag warning light is faulty.
4) Airbag main harness is faulty.
5) Airbag control module is faulty.40
Warning light
indicates trouble
code, then normal
code.Flashing trouble
code.Provided. Airbag system component parts are faulty. 42
Flashing
normal code.
Not provided.1) Airbag connector is faulty.
2) Fuse No. 16 is blown.
3) Airbag main harness is faulty.
4) Airbag control module is faulty.
5) Body harness is faulty.45
2. HOW TO READ TROUBLE CODES
The AIRBAG warning light flashes a code corresponding to
the faulty parts.
The long segment (1.2 sec on) indicates a“ten”, and the
short segment (0.3 sec on) indicates a“one”.
B5M0117A
11
5-5SUPPLEMENTAL RESTRAINT SYSTEM
4. Diagnostics Chart for On-board Diagnostic System

D: LIST OF TROUBLE CODES
1. TROUBLE CODES
Trouble code/Contents of troubles Memory function Contents of diagnosis Page
04 Provided.1) Airbag main harness circuit is shorted.
2) Airbag module harness (Ps) circuit is shorted.
3) Airbag control module is faulty.16
11 Provided.1) Airbag control module is faulty.
2) Airbag main harness circuit is open.
3) Fuse No. 8 is blown.
4) Body harness circuit is open.17
12 Provided.1) Airbag main harness circuit is open.
2) Airbag module harness (Dr) circuit is open.
3) Roll connector circuit is open.
4) Airbag control module is faulty.20
13 Provided.1) Airbag main harness circuit is shorted.
2) Airbag module harness (Dr) is shorted.
3) Roll connector circuit is shorted.
4) Airbag control module is faulty.21
14 Not provided.1) (AB9) and (AB10) are not connected properly.
2) (AB2) and (AB7) are not connected properly.
3) (AB3) and (AB8) are not connected properly.
4) (AB6) is not connected properly to airbag control
module.22
21 Provided. Airbag control module is faulty. 24
22 Provided.1) Airbag main harness circuit is open.
2) Airbag module harness (Ps) circuit is open.
3) Airbag control module is faulty.25
31 Not provided.1) Airbag control module is faulty.
2) Airbag main harness circuit is open.
3) Fuse No. 16 is blown.
4) Body harness circuit is open.26
33 Provided. Airbag module is inflated. 28
34 Provided.1) Airbag main harness circuit (Ps) is shorted to
power supply.
2) Airbag module harness (Ps) is shorted to power
supply.
3) Airbag control module is faulty.29
41 Provided.1) Airbag main harness circuit (Dr) is shorted to
ground.
2) Airbag module harness circuit (Dr) is shorted to
ground.
3) Roll connector circuit is shorted to ground.
4) Airbag control module is faulty.30
42 Provided.1) Airbag main harness circuit (Ps) is shorted to
ground.
2) Airbag module harness circuit (Ps) is shorted to
ground.
3) Airbag control module is faulty.31
43 Provided.1) Airbag main harness circuit (Dr) is shorted to
power supply.
2) Airbag module harness (Dr) is shorted to power
supply.
3) Roll connector is shorted to power supply.
4) Airbag control module is faulty.32
11
5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
4. Diagnostics Chart for On-board Diagnostic System

Trouble code/Contents of troubles Memory function Contents of diagnosis Page
Airbag warning light remains on. Not provided.1) Airbag warning light is faulty.
2) Airbag control module to airbag warning light
harness circuit is shorted or open.
3) Grounding circuit is faulty.
4) Airbag control module is faulty.
5) (AB1) and (B39) are not connected properly.33
Airbag warning light remains off. Not provided.1) Fuse No. 15 is blown.
2) Body harness circuit is open.
3) Airbag warning light is faulty.
4) Airbag main harness is faulty.
5) Airbag control module is faulty.36
Warning light indicates trouble code,
then normal code. (Flashing trouble
code.)Provided. Airbag system component parts are faulty. 38
Warning light indicates trouble code,
then normal code. (Flashing normal
code.)Not provided.1) Airbag connector is faulty.
2) Fuse No. 16 is blown.
3) Airbag main harness is faulty.
4) Airbag control module is faulty.
5) Body harness is faulty.41
[NOTE] Dr: Driver side Ps: Passenger side
2. HOW TO READ TROUBLE CODES
The AIRBAG warning light flashes a code corresponding to
the faulty parts.
The long segment (1.2 sec on) indicates a“ten”, and the
short segment (0.3 sec on) indicates a“one”.
B5M0117A
12
5-5bSUPPLEMENTAL RESTRAINT SYSTEM (ELECTRIC SENSOR TYPE)
4. Diagnostics Chart for On-board Diagnostic System

8. Diagnostics Chart with Trouble Code
A: TROUBLE CODE
Trouble code Item Contents of diagnosis Page
10 OK Normal 18
11 BRAKE/ST/CL or N
Input signals from brake switch“OFF”, stop light
switch“ON”(Brake pedal is in depressed condi-
tion.)

Input signals from clutch switch“OFF”, or inhibi-
tor switch is in“N”position.
[Clutch pedal is depressed (MT), or select lever
is set to N position (AT).]20
12 NOT SET SP Out of cruise speed range 22
13 LOW SP LIM Low-speed control limiter 22
14 CANCEL SW Input signal from cancel switch 26
15 NO MEMORY No memorized cruise speed—
21 SP SENS NG Faulty vehicle speed sensor 2 22
22 COM SW NGFaulty SET/COAST switch or RESUME/ACCEL
switch26
23 RELAY NG Faulty safety relay included in cruise control module 29
24 CPU RAM NG Faulty CPU RAM included in cruise control module 29
31 MOTOR NG Faulty vacuum motor or motor drive system 30
32 AIR VAL NG Faulty air valve or valve drive system 30
33 REL VAL NG Faulty release valve or valve drive system 30
16
6-2BODY ELECTRICAL SYSTEM
8. Diagnostics Chart with Trouble Code

9. Diagnostics Chart with Select
Monitor
A: FUNCTION MODE
Applicable cartridge of select monitor: No. 498349601
Function mode Contents Abbreviation Unit of measure Page
F00 ROM ID number YEAR—33
F01 Vehicle speed signal VSP MPH 33
F02 Vehicle speed signal VSP km/h 33
F03 Memorized cruise set speed MSP MPH 34
F04 Memorized cruise set speed MSP km/h 34
FA 0 O N)OFF signal——35
31
6-2BODY ELECTRICAL SYSTEM
9. Diagnostics Chart with Select Monitor

How to use this manual

This Service Manual is divided into four volumes by section so that it can be used with ease at work. Refer to
the Table of Contents, select and use the necessary section.

GENERAL INFORMATION SECTION

REPAIR SECTION

DIAGNOSTICS SECTION

WIRING DIAGRAM SECTION

Each chapter in the manual is basically made of the following four types of areas.
S SPECIFICATIONS AND SERVICE DATA
C COMPONENT PARTS
W SERVICE PROCEDURE
(X SERVICE PROCEDURE)
(Y SERVICE PROCEDURE)
K DIAGNOSTICS

The description of each area is provided with four types of titles different in size as shown below. The Title No.
or Symbol prefixes each title in order that the construction of the article and the flow of explanation can be eas-
ily understood.
[Example of each title]

Area title: W SERVICE PROCEDURE (one of the four types of areas)

Large title (Heading): 1. Oil Pump (to denote the main item of explanation)

Medium title (Section): A: REMOVAL (to denote the type of work in principle)

Small title (Sub-section): 1. INNER ROTATOR (to denote a derivative item of explanation)
3

2. How to Use this Manual

This Service Manual is divided into four volumes by section so that it can be used with ease at work.
Refer to the Table of Contents, select and use the necessary section.

GENERAL INFORMATION SECTION

REPAIR SECTION

DIAGNOSTICS SECTION

WIRING DIAGRAM SECTION

The description of each area is provided with four types of titles different in size as shown below. The
Title No. or Symbol prefixes each title in order that the construction of the article and the flow of explana-
tion can be easily understood.
[Example of each title]

Area title: T. DIAGNOSTICS

Large title (Heading): 1. Diagnostics Chart with Select Monitor (to denote the main item of explanation.)

Medium title (Section): A: BASIC DIAGNOSTICS CHART (to denote the type of work in principle.)

Small title (Sub-section): 1. CHECK INPUT SIGNAL FOR ECM (to denote a derivative item of explanation.)
3
[T200] FOREWORDFOREWORD
2. How to Use this Manual