1996 SUBARU LEGACY warning lights

5-5b
IMZ-10I
SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
2
.
Const
r
uc
ti
on

10
.
WARNING
AND
CAUTION
LABELS

B5H0433A

O

SRS
AIRBAG
CONTROL
UNIT
CAUTION

"
READ
SERVICE
MANUAL
"
NO
SERVICEABLE
INSIDE
~
DO
NOT
DISASSEMBLE
OR
TAMPER
"
DO
NOT
DROP
;
KEEP
DRY
"
STORE
IN
CLEAN
DRYAREA

Precaution

*
lisez
le
manuel
d'entretien
.
aucune
piece
interne
nepeut
titre
remplacee
ou
r6paree
*ne
d6montez
ou
alterez
pas
cetteunite
de
controle
.n'echappez
pas
"
emmagasinez
dans
un
endroit
sec

'~`J~~'«*~-~~~=

Jtd~ahl~~4~LZF~~~o
"eMt,t~,-'7
9
"
ML
Lt--
LJASI
.t
IALtdI
.)T-Fc~Oo

CAUTION
:
ALWAYS
USE
SEATBELTS
OR
CHILDSEAT

"
This
car
is
equipped
with
driver
and
front
seat
passenger
SRS
AIRBAG
.
It
is
designed
to
SUPPLEMENT
THE
SEAT-
BELT
"
If
your
"AIRBAG"
indicator
in
the
instrument
panel
lights
while
driving,
see
your
nearest
SUBARU
dealer
.
"
See
your
owner's
manual
for
more
information
.

ATTENTION
:
ATfACHEZ
VOTRE
CEINTURE
DE
SECURITE
ET
UTILISEZ
UN
SIEGE
POUR
ENFANT

"
Cette
voiture
est
pourvue
d'un
coussin
d'air
SRS
pour
le
conducteur
etle
passagerdu
siegeavant
.
Ce
coussin
a
ete
Q
conqu
comme
COMPLEMENT
A
LA
CEINTURE
DE
SECURITE
.'
""
'
'
"
Si
(
indication
AIRBAG
(coussin
d
air)
s
allume
sur
le
tableau
debord
pendant
la
conduite,
consultez
votre
revendeur
SUBARU
le
plus
proche
.
"
Consultez
votre
manuel
du
proprietaire
.

VORSICHT
Vervvenden
Sie
stets
den
Sicherheitsgurt
oder
den
Kindersitz
.

"
Dieses
Fahrzeug
ist
mit
einer
Fahrer=und
Beifahrer-SRS-Luftsackanlage
ausgerustet
.
Es
wurde
vorgesehen,
um
den
Sicherheitsgurt
zu
erganzen
.
"
Wenn
wahrend
der
Fahrt
die

AIRBAG"-Anzeige
am
Instrumentenbrett
leuchtet,
setzen
Sie
sich
mit
Ihrem
ortlichen
SUBARU-Handler
in
Verbindung
.
"
Nahere
Angaben
dazu
sind
aus
der
Bedienungsanleitung
zu
entnehmen
.

SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
[T502]
5-5b

5
.
Diagnostics
Chart
with
Trouble
Code

O
:
AIRBAG
WARNING
LIGHT
REMAINSOFF
.

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
.

1
1
.
Fuse
No
.
15inspection

1
2
.
Body
harness
inspection

3
.
Airbag
warning
light
module
(in
combination

meter)
inspection

1
4
.
Airbag
main
harness
Inspection

CAUTION
:

Before
performing
diagnostics
on
airbag
system,
turn

ignition
switch
"OFF",
disconnect
battery
ground

terminal,
and
then
wait
at
least
20
seconds
.

1
.
FUSE
No
.
15
INSPECTION

Remove
and
visually
check
fuse
No
.
15
.

CHECK
;
Is
fuse
No
.
15
blown?

(]
ES
:
Replace
fuse
No
.
15
.

If
fuse
No
.
15
blows
again,
go
to
step
2
.

No
:
Go
to
step
2
.

2
.
BODY
HARNESS
INSPECTION

Turn
ignition
switch
"ON"
(engine
off)
to
make
sure
other

warning
lights
(in
combination
meter)
illuminate
.

CHECK
:
Do
all
the
warning
lights
(in
combination

meter)
except
airbag
warning
light
come
on?

vES
:
Go
to
step
3
.

No
:
Repair
body
harness
.

35

3. CONDITIONS FOR COMPLETION OF AIR
BLEEDING CONTROL
When any of the following conditions occurs, ABS and TCS
warning lights illuminate. Air bleeding control stops, while
the ABS and TCS function will then stop. The brake sys-
tem functions as a conventional brake system.
1) When the speed of at least one wheel reaches 10 km/h
(6 MPH).
2) When terminal No. 4 is separated from diagnosis termi-
nal. (When select monitor is not used.)
3) When pump motor remains ON for two minutes.
4) When TCS valve remains open for two minutes.
5) When outlet valve remains closed for two minutes.
6) When malfunction is detected.
NOTE:
When a malfunction is detected the air bleeding operation
stops and the trouble codes are stored in memory.
B4M0082C
C: AIR BLEEDING CONTROL WITH
DIAGNOSIS CONNECTOR
1) Connect diagnosis terminals to terminal No. 4 of the
diagnosis connector beside driver’s seat heater unit.
B4M0621A
2) Start the engine while pushing TCS OFF switch.
NOTE:
Keep the TCS OFF switch depressed even after the engine
has started.
3) After ABS and TCS warning lights go out, depress
brake pedal within 0.5 seconds.
4) After ensuring TCS ON indicator illuminates, release
TCS OFF switch and brake pedal.
5) Air bleeding control operation starts.
90
4-4SERVICE PROCEDURE
19. Air Bleeding (With TCS model)

D: ABS SEQUENCE CONTROL
1) Under the ABS sequence control, after the hydraulic
unit solenoid valve is driven, the operation of the hydraulic
unit can be checked by means of the brake tester or pres-
sure gauge.
2) ABS sequence control can be started by diagnosis con-
nector or select monitor.
B4M0082C
1. OPERATIONAL GUIDELINES OF THE ABS
SEQUENCE CONTROL WITH DIAGNOSIS
CONNECTOR
1) Connect diagnosis terminals to terminal No. 4 of the
diagnosis connector beside driver’s seat heater unit.
2) Ignition switch is turned to ON.
3) Make sure only the start code (code 11) is shown in
normal condition.
NOTE:
When trouble codes are stored in memory, repair the faulty
parts.
4) Set the speed of all wheels at 10 km/h (6 MPH) or less.
5) Turn ignition switch OFF.
6) Within 0.5 seconds after the ABS and TCS warning
lights go out, depress the brake pedal and hold it immedi-
ately after engine starts.
NOTE:

When the ignition switch is set to on, the brake pedal
must not be depressed.

Engine must operate.

If brake pedal is not depressed within 0.5 seconds after
ABS and TCS warning lights go out, the trouble code mode
comes on.
7) After completion of ABS sequence control, turn ignition
switch OFF.
2. OPERATIONAL GUIDELINES OF THE ABS
SEQUENCE CONTROL WITH SELECT MONITOR
1) Connect select monitor to data link connector beside
driver’s seat heater unit.
2) Engine starts.
3) Put select monitor to TCS mode.
4) put select monitor to FBI mode. Make sure code 11 is
indicated.
NOTE:
When trouble codes are stored in memory, repair the faulty
parts.
97
4-4SERVICE PROCEDURE
20. Hydraulic Unit for ABS/TCS System

3. CONDITIONS FOR COMPLETION OF ABS
SEQUENCE CONTROL
When the following conditions develop, the ABS sequence
control stops and ABS and TCS warning lights come on
while the ABS and TCS function will then stop. The brake
system functions as a conventional brake system.
1) When the speed of at least one wheel reaches 10 km/h
(6 MPH).
2) When terminal No.4 is separated from ground. (When
select monitor is not used.)
3) When the brake pedal is released during sequence con-
trol and the braking lamp switch is set to off.
4) After completion of the sequence control.
5) When malfunction is detected.
NOTE:
When malfunction has been detected and the ABS
sequence control operation has stopped, the trouble codes
are stored in memory.
99
4-4SERVICE PROCEDURE
20. Hydraulic Unit for ABS/TCS System

F: TCS SEQUENCE CONTROL
1) Under the TCS sequence control, after the hydraulic
unit solenoid valve is driven, the operation of the hydraulic
unit can be checked by means of the brake tester or pres-
sure gauge.
2) TCS sequence control can be started by diagnosis con-
nector or select monitor.
B4M0082C
1. OPERATIONAL GUIDELINES OF THE TCS
SEQUENCE CONTROL WITH DIAGNOSIS
CONNECTOR
1) Connect diagnosis terminals to terminal No. 4 of the
diagnosis connector beside driver seat heater unit.
2) Ignition switch is turned to ON.
3) Make sure only the start code (code 11) is shown in
normal condition.
NOTE:
When trouble codes are stored in memory, repair the faulty
parts.
4) Set the speed of all wheels at 10 km/h (6 MPH) or less.
5) Turn ignition switch OFF.
6) Start engine, and within 0.5 seconds after the ABS
warning light and TCS warning light go out, press TCS OFF
switch. Within 1.0 second thereafter, release and press the
switch again. Then, keep the switch pressed.
NOTE:

When the TCS sequence control is set to on, the brake
pedal must not be depressed.

Engine must operate.

When TCS OFF switch is not depressed within 0.5 sec-
onds after ABS and TCS warning lights turn off, the trouble
code mode comes on.
7) After completion of TCS sequence control, turn ignition
switch OFF.
103
4-4SERVICE PROCEDURE
20. Hydraulic Unit for ABS/TCS System

3. CONDITIONS FOR COMPLETION OF TCS
SEQUENCE CONTROL
When the following conditions develop, the TCS sequence
control stops and ABS and TCS warning lights come on
while the ABS and TCS function will then stop. The brake
system functions as a conventional brake system.
1) When the speed of at least one wheel reaches 10 km/h
(6 MPH).
2) When terminal No. 4 is separated from ground. (When
select monitor is not used.)
3) When the brake pedal is depressed during sequence
control and the braking lamp switch is set to ON.
4) When TCS OFF switch is released. (When select moni-
tor is not used.)
5) After completion of the TCS sequence control.
6) When output signal to break TCS control is emitted from
ECM.
7) When malfunction is detected.
NOTE:
When malfunction has been detected and the TCS
sequence control operation has stopped, the trouble codes
are stored in memory.
105
4-4SERVICE PROCEDURE
20. Hydraulic Unit for ABS/TCS System

G5M0298
8) Do not allow water or oil to come in contact with the
connector terminals. Do not touch the connector terminals.
9) When connecting or disconnecting airbag connector,
make sure ignition switch is OFF.
2. Inspection and Replacement
Standards
1. VEHICLES WHICH BECOME INVOLVED IN A
COLLISION
If the vehicle equipped with an SRS airbag system is
damaged in a collision, the airbag system parts must
be checked and replaced in accordance with the fol-
lowing standards:
After faulty parts are replaced, the warning light opera-
tion must be checked.
When the ignition switch is turned ON, it lights up
for 8 seconds and then it goes out for at least 30 sec-
onds.
The trouble code stored in memory must be erased
after the check.
2. AIRBAG MODULE (DRIVER AND PASSENGER)
Inspection standard:
The vehicle damaged in a collision (regardless of
whether or not airbag is deployed).
The designated trouble code is output during self-diag-
nosis. (Refer to“Diagnostics”Section.)
Replacement standard:
Airbag is deployed.
The pad surface is scratched or cracked.
Harness and/or connector is deformed or cracked, their
circuits are broken, lead wire is exposed, etc.
Mounting bracket is cracked or deformed.
The module surface is fouled with foreign matter.
(grease, oil, water, cleaning solvent, etc.)
Airbag module dropped to the floor/ground.
Airbag module determined as faulty during self-diagno-
sis.
6
5-5SERVICE PROCEDURE
1. Precaution - 2. Inspection and Replacement Standards