SB-7
SEAT BELT SYSTEM
Seat Belt Warning System
3. Seat Belt Warning System
A: WIRING DIAGRAM
<Ref. to WI-255, WIRING DIAGRAM, Seat Belt Warning System.>
B: INSPECTION
TROUBLE SYMPTOM:
• Seat belt warning light does not come on or go off.
• Buzzer does not beep.
Step
Check
Yes
No
1
CHECK HARNESS BETWEEN SEAT BELT
TIMER MODULE AND CHASSIS GROUND.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from seat belt
timer module.
3) Measure the resistance between seat belt
timer module harness connector and chassis
ground.
Connector & terminal
(B44) No. 3 — Chassis ground:
Is the resistance less than 1
Ω
?
Repair the open
circuit of harness
between seat belt
timer module and
chassis ground.
2
CHECK POWER SUPPLY OF SEAT BELT
TIMER MODULE.
1) Turn the ignition switch to ON.
2) Measure the voltage between seat belt
timer module connector and chassis ground.
Connector & terminal
(B44) No. 9 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step
Repair the open
harness, short cir-
cuit and poor con-
tact of connector
between seat belt
timer module and
battery.
3
CHECK HARNESS AND SEAT BELT
SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from seat belt
timer module.
3) Hold the tang plate disconnected from seat
belt buckle.
4) Measure the resistance between seat belt
timer module harness connector and chassis
ground.
Connector & terminal
(B44) No. 6 — Chassis ground:
Is the resistance less than 1
Ω
?
Repair the short
circuit of harness
between seat belt
timer module con-
nector and chassis
ground.
4
CHECK SEAT BELT SWITCH AND HAR-
NESS.
1) Turn the ignition switch to OFF.
2) Insert the tang plate into seat belt buckle.
3) Measure the resistance between seat belt
timer module connector and chassis ground.
Connector & terminal
(B44) No. 6 — Chassis ground:
Is the resistance more than 1
M
Ω
?
5
CHECK HARNESS BETWEEN SEAT BELT
TIMER MODULE AND SEAT BELT SWITCH.
Measure the resistance of harness between
seat belt timer module connector and seat belt
switch.
Connector & terminal
(B44) No. 6 — (R8) No. 2:
Is the resistance less than 1
Ω
?
Repair the open
circuit of harness
and poor contact
of connector
between seat belt
timer module con-
nector and seat
belt switch.
Содержание 2004 Forester
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