1995 SUBARU LEGACY check engine light

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Page 1847 of 2248

SUBARU LEGACY 1995 Service Repair Manual O: AIRBAG WARNING LIGHT REMAINS OFF.
DIAGNOSIS:
Fuse No. 15 is blown.
Body harness circuit is open.
Airbag warning light is faulty.
Airbag main harness is faulty.
Airbag control module is faulty.

Page 1853 of 2248

SUBARU LEGACY 1995 Service Repair Manual G5M0461
2. SHOWERING INSPECTION TO BODY
1) Spray water on vehicle body.
CAUTION:
Do not directly spray water on airbag components.
2) Check passenger compartment for traces of leaking.
NOTE:
If leaks

Page 1860 of 2248

SUBARU LEGACY 1995 Service Repair Manual 5. Control Module I/O Signal
G6M0015
ContentTerminal
No.Measuring conditions and I/O signals (ignition switch ON and engine idling)
Main power supply 2Battery voltage is present when main power is tu

5. Control Module I/O Signal
G6M0015
ContentTerminal
No.Measuring conditions and I/O signals (ignition switch ON and engine idling)
Main power supply 2Battery voltage is present when main power is turned ON.
“0”volt is present when main power is turned OFF.
Inhibitor switch (AT) (U.S.A.)
N position switch (AT) (CANADA)4“0”volt is present when selector lever is set to P or N position (CANADA: N position only).
Battery voltage is present when selector lever is other than P or N position (CANADA: N
position only).
Air valve 5“0”volt is present when vehicle is stopped.
ON-and-OFF (“0”-and-battery voltage) operation is alternately repeated while cruise control
is operating.
GND 6—
Vacuum pump motor 7“0”volt is present when vehicle is stopped.
ON-and-OFF (“0”-and-battery voltage) operation is alternately repeated while cruise control
is operating.
Data link connector 8—
RESUME/ACCEL switch 9Battery voltage is present when switch is turned ON.
“0”volt is present when switch is turned OFF.
SET/COAST switch 10Battery voltage is present when switch is turned ON.
“0”volt is present when switch is turned OFF.
Ignition switch 12Battery voltage is present when ignition switch is turned ON.
“0”volt is present when ignition switch is turned OFF.
Release valve 13“0”volt is present when vehicle is stopped.
ON-and-OFF (“0”-and-battery voltage) operation is alternately repeated while cruise control
is operating.
Power supply to vacuum pump
motor, air valve, release valve14“0”volt is present when vehicle is stopped.
Battery voltage is present while cruise control is operating.
Cruise main switch 15Battery voltage is present during pressing the main switch, and then approx. 12 V is
present while switch is turned ON.
“0”volt is present when switch is turned OFF.
Brake switch 16Turn the cruise main switch to ON and leave clutch pedal released (MT).
Then check that;
“0”volt is present when brake pedal is depressed.
Battery voltage is present when brake pedal is released.
Additionally only in MT vehicle, keep the cruise main switch to ON and leave brake pedal
released.
Then check that;
“0”volt is present when clutch pedal is depressed.
Battery voltage is present when clutch pedal is released.
Data link connector 17—
Data link connector 18—
Vehicle speed sensor 2 19Lift-up the vehicle until all four wheels are raised off ground, and then rotate any wheel manu-
ally.
Approx. 5 and 0 volt pulse signals are alternately input to cruise control module.
Stop light switch 20Turn ignition switch to OFF.
Then check that;
Battery voltage is present when brake pedal is depressed.
“0”volt is present when brake pedal is released.
NOTE:
Voltage at terminals 5, 7, 13 and 14 cannot be checked unless vehicle is driving by cruise control operation.
7
6-2BODY ELECTRICAL SYSTEM
5. Control Module I/O Signal

Page 1906 of 2248

SUBARU LEGACY 1995 Service Repair Manual No. Load
MB-1 Fuse holder (Rear power supply)
MB-2 Power window circuit breaker
MB-3Engine control module
Fuel pump relay
Main relay
OBD-II service connector
MB-4 A/C relay holder
MB-5 Headlight alarm

No. Load
MB-1 Fuse holder (Rear power supply)
MB-2 Power window circuit breaker
MB-3Engine control module
Fuel pump relay
Main relay
OBD-II service connector
MB-4 A/C relay holder
MB-5 Headlight alarm relay (with security)
MB-6 Headlight LH
MB-7Combination meter
Daytime running light control module
Diode (Lighting)
Diode (Security)
Lighting switch
Luggage room light
Room light
Step light
Trunk room light
MB-8Combination meter
Front fog light switch
Headlight RH
MB-9Door lock timer
Headlight alarm relay
Interrupt relay
Radio
Security control module
Security indicator light
Spot light
MB-10 A/C relay holder
SBF-6Hydraulic unit (A.B.S.)
T.C.S. motor relay
SBF-7 T.C.S. valve relay
ALT-1Combination meter
Daytime running light control module
IG Headlight alarm relay
STCruise control module
Engine control module
Inhibitor switch (AT)
Interrupt relay
Starter interlock relay (MT)
FB-1Front washer motor
Rear washer motor
FB-2 Diode (A/C)
FB-3Sub fan motor
Sub fan relay-2
FB-4Engine control module
Fuel pump relay
Transmission control module
FB-5 Hydraulic unit (A.B.S.)
FB-6Front clearance light LH
Front clearance light RH
Side marker light LH
Side marker light RHNo. Load
FB-7 Door lock timer
FB-9 Hazard switch
FB-10AT shift lock control module
Key warning switch
Power antenna
FB-11 Radio
FB-12 Cigarette lighter
FB-13Remote control rearview mirror switch
Security control module
Vanity mirror illumination light
FB-14AT shift lock control module
Combination switch
Front wiper motor
Rear wiper motor
Rear wiper relay
FB-15A.B.S./T.C.S. control module
Transmission control module
FB-16Rear defogger
Rear defogger condenser
Rear defogger switch
FB-17 Rear defogger switch
FB-18AT shift lock control module
Back-up light switch (MT)
Inhibitor switch (AT)
FB-19 Hazard switch
FB-20A/C switch
Combination meter
Mode control panel
T.C.S. off switch
FB-21 Combination meter (Airbag)
FB-22Blower motor relay
Check connector
Daytime running light control module
Daytime running light relay
FRESH/RECIRC actuator
Hi-beam relay
Power window and sunroof relay
Seat belt timer
FB-23 Airbag control module
FB-24 Airbag control module
FB-25 Lighting switch
FB-26 Parking switch
FB-27 Parking switch
FB-28 Illumination light
FB-29 Illumination light
FB-30Pedal stroke sensor
Stop light switch
Stop & brake switch
FB-31 Horn relay
FB-32 Blower motor relay
FB-33 Parking switch
20
6-3WIRING DIAGRAM
6. Wiring Diagram

Page 1910 of 2248

SUBARU LEGACY 1995 Service Repair Manual No. Load
MB-2 Power window circuit breaker
MB-3Engine control module
Fuel pump relay
Main relay
OBD-II service connector
MB-6 Headlight LH
MB-7Diode (Lighting)
Lighting switch
MB-8Combination meter
He

Page 1990 of 2248

SUBARU LEGACY 1995 Service Repair Manual 7. Electrical Unit Location
Electrical unit Refer to;
A.B.S. control module 4-4a [T300]
A.B.S. G sensor (MT) 4-4a [T300]
A/C compressor relay
7
A/C fuse11
A/C main fan relay 110
A/C main fan relay

7. Electrical Unit Location
Electrical unit Refer to;
A.B.S. control module 4-4a [T300]
A.B.S. G sensor (MT) 4-4a [T300]
A/C compressor relay
7
A/C fuse11
A/C main fan relay 110
A/C main fan relay 28
A/C pressure switch2
A/C sub fan relay 29
ATF temperature sensor 2-7 [T2B1]
Blower motor resistor
26
Blower relay13
Camshaft position sensor 2-7 [T2A2]
Check connector
25
Clutch switch (MT) 6-2 [T300]
Crankshaft position sensor 2-7 [T2A2]
Cruise control module 6-2 [T300]
Cruise control pump 6-2 [T300]
Data link connector (for OBD-II G.S.T.) 2-7 [T2A1]
Data link connector (for S.S.M.) 2-7 [T2A1]
Diagnosis connector 4-4a [T300]
Diagnosis terminal (Ground) 4-4a [T300]
Door lock timer
27
Engine control module 2-7 [T2A1]
Engine coolant temperature sensor 2-7 [T2A2]
Engine hood switch (Security) 6-2 [K6A0]
Evaporator thermoswitch
29
F/B15
FRESH/RECIRC actuator28
Fuel pump relay 2-7 [T2A3]
Fuel gauge module
31
Fuel gauge sub module (AWD)32
FWD switch (AT)1
Headlight alarm relay (Security) 6-2 [K6A0]
Headlight relay LH
5
Headlight relay RH6
Horn relay14
Electrical unit Refer to;
Hydraulic unit (A.B.S.) 4-4a [T300]
Ignition coil 2-7 [T2A3]
Ignitor 2-7 [T2A3]
Idle air control solenoid valve 2-7 [T2A3]
Illumination control module
21
Inhibitor switch 6-2 [T300]
Knock sensor 2-7 [T2A2]
Main fan relay
19
Main relay 2-7 [T2A3]
Mass air flow sensor 2-7 [T2A2]
Mode actuator
12
M/B4
Oil pressure switch3
Oxygen sensor 2-7 [T2A2]
Pedal stroke sensor (T.C.S.) 4-4b [T300]
Power window and sunroof relay
24
Power window circuit breaker23
Purge control solenoid valve 2-7 [T2A3]
Rear defogger relay
17
Seat belt timer20
Security control module 6-2 [K6A0]
Shift lock control module
22
Starter interrupt relay (Security) 6-2 [K6A0]
Stop & brake switch (With cruise con-
trol)6-2 [T300]
Sunroof control module
30
Tail and illumination relay18
T.C.S. control module 4-4b [T300]
T.C.S. motor relay 4-4b [T300]
T.C.S. valve relay 4-4b [T300]
Throttle position sensor 2-7 [T2A2]
Test mode connector 2-7 [T2A1]
Transmission control module 2-7 [T2B1]
Turn & hazard module
16
Vehicle speed sensor 1 2-7 [T2B1]
Vehicle speed sensor 2 2-7 [T2B1]
104
6-3WIRING DIAGRAM
7. Electrical Unit Location

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