Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 1999-2000 BODY AND ELECTRICAL SECTION Supplemental Restraint System MSA5T0126A27517

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DIAGNOSTICS [T4B0] 5-5
4. Diagnostics Chart for On-board Diagnostic System

4. Diagnostics Chart for On- 4A4 : CHECK AIRBAG WARNING LIGHT
board Diagnostic System ILLUMINATES.

A: BASIC DIAGNOSTICS Check airbag warning light illuminates.
PROCEDURE : Does airbag warning light come ON
for about 7 seconds, then go out and
4A1 : CHECK AIRBAG WARNING LIGHT
stay out?
ILLUMINATES.
: Perform clear memory.
1) Turn ignition switch to ON (engine OFF).
2) Check airbag warning light illuminates. : Go to step 4A1.
: Does airbag warning light stay ON B: ON-BOARD DIAGNOSTIC
after about 7 seconds or remain OFF,
or come back ON after 30 seconds? When the airbag system is in functioning condition,
the airbag warning light will remain on for about 7
: Repair and replace.
to ON.
: Go to step 4A2. If there is any malfunction, the airbag warning light
will either stay on or off continuously. In such
4A2 : CHECK TROUBLE CODE INDICATES. cases, perform on-board diagnostic in accordance
with the specified procedure to determine trouble
codes.
Perform ON-BOARD DIAGNOSTICS.
2) Connect DIAG. terminal to No. 1 terminal of
: Does trouble code indicate?
: Repair and replace. Go to step 4A3.
: Repair and replace. Go to step 4A3.

4A3 : CHECK AIRBAG WARNING LIGHT
ILLUMINATES.

1) Turn ignition switch to ON (engine OFF). B5M0115D
2) Check airbag warning light illuminates.
3) Check in accordance with the trouble code indi-
: Does airbag warning light stay ON cated by the AIRBAG warning light, and record the
after about 7 seconds or come back trouble codes.
ON after 30 seconds? 4) Turn the ignition switch "OFF" and remove the
: Repair and replace. connector.
: Go to step 4A4.

11
5-5 [T4C0] DIAGNOSTICS
4. Diagnostics Chart for On-board Diagnostic System

C: CLEAR MEMORY D: DIAGNOSTICS PROCEDURE
After eliminating problem as per trouble code, clear
memory as follows: 4D1 : CHECK TROUBLE CODE INDICATES.
1) Make sure ignition switch is ON (and engine
off). Connect one DIAG. terminal "A" on diagnosis 1) Perform on-board diagnostic.
While warning light is flashing, contact the other 2) Check trouble code indicates.
DIAG. terminal "B" on terminal No. 2 for at least
three seconds. : Are trouble codes 11, 12, 15 or 16
indicated?
: Go to step 4D2.
: Perform diagnostics and repair accord-
ing to indicated trouble code.

4D2 : CHECK TROUBLE CODE INDICATES.

Check trouble code indicates.
B5M0116D : Are trouble codes 12, 16 indicated?
2) After memory is cleared, normal warning light
flashing rate resumes. (Warning light flashes every : Go to step 4D3.
0.6 seconds ON-OFF operation.) Memory cannot : Go to step 4D4.
be cleared if any problem exists.
3) After clear memory and then DIAG. terminals
"A" and "B", extract from diagnosis connector.

12
DIAGNOSTICS [T4D4] 5-5
4. Diagnostics Chart for On-board Diagnostic System

4D3 : CHECK AIRBAG WARNING LIGHT 4D4 : CHECK AIRBAG WARNING LIGHT
ILLUMINATES. ILLUMINATES.

1) Turn ignition switch to OFF. Disconnect battery 1) Turn ignition switch to "OFF". Disconnect bat-
ground cable, and wait 20 seconds. tery ground cable, and wait 20 seconds.
2) Remove glove box and 2) Connect connector (AB8) to (AB3).
disconnect passenger's airbag module connector 3) Remove driver's airbag module and connect
(AB9) to (AB10). test harness F connector (1F) to (AB7).
(AB9). 4) Connect airbag resistor to test harness F con-
4) Connect airbag resistor to test harness F con- nector (3F).
nector (3F).

S5M0251A
S5M0249A
5) Connect battery ground cable and turn ignition
5) Connect battery ground cable and turn ignition switch to ON.
switch to ON. 6) Check airbag warning light illuminates.
6) Check airbag warning light illuminates. NOTE:
NOTE: In some cases the airbag warning light will go OFF
In some cases the airbag warning light will go OFF after about 7 seconds but will turn ON again within
after about 7 seconds but will turn ON again within 30 seconds. In this case continue diagnostics with
30 seconds. In this case continue diagnostics with the basic diagnostics procedures or trouble code
the basic diagnostics procedures or trouble code procedures.
procedures. : Does airbag warning light go off after
: Does airbag warning light go off after about 7 seconds and remain off for
about 7 seconds and remain off for more than 30 seconds?
more than 30 seconds? : Replace with a new driver's airbag mod-
: Replace with a new passenger's airbag ule. Go to step
module. Go to 4D6.
step 4D6. : Go to step 4D5.
: Perform diagnostics and repair accord-
ing to indicated trouble code.

13
5-5 [T4D5] DIAGNOSTICS
4. Diagnostics Chart for On-board Diagnostic System

4D5 : CHECK AIRBAG WARNING LIGHT 4D6 : CHECK AIRBAG WARNING LIGHT
ILLUMINATES. ILLUMINATES.

1) Turn ignition switch to OFF. Disconnect battery 1) Connect battery ground cable and turn ignition
ground cable, and wait 20 seconds. switch to ON.
2) Remove lower cover panel and connect test 2) Check airbag warning light illuminates.
harness F connector (1F) to (AB8) with airbag resistor attached to test har- In some cases the airbag warning light will go OFF
ness F connector (3F). after about 7 seconds but will turn ON again within
30 seconds. In this case continue diagnostics with
the basic diagnostics procedures or trouble code
procedures.
: Does airbag warning light go off after
about 7 seconds and remain off for
more than 30 seconds?
: Perform clear memory.
: Go to step 4D1.
S5M0250A

3) Connect battery ground cable and turn ignition
switch to ON.
4) Check airbag warning light illuminates.
NOTE:
In some cases the airbag warning light will go OFF
after about 7 seconds but will turn ON again within
30 seconds. In this case continue diagnostics with
the basic diagnostics procedures or trouble code
procedures.
: Does airbag warning light go off after
about 7 seconds and remain off for
more than 30 seconds?
: Replace with a new roll connector. Go to step 4D6.
: Perform diagnostics and repair accord-
ing to indicated trouble code.

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