Subaru 2009 IMPREZA, Service Manual

Page: 2954 / 3619

SB-15
Seat Belt Warning System
SEAT BELT SYSTEM
13 CHECK AIRBAG SYSTEM AND OCCUPANT
DETECTION SYSTEM.
Perform the check in accordance with the diag-
nostic procedure DTC 27 of the airbag system.
<Ref. to AB(diag)-60, DTC 27 ODS COMMUNI-
CATION ERROR, Diagnostic Chart with Trouble
Code.>
Is there any problem on the
inspection result? Go to step 14 . Replace with new
parts according to
DTC 27.
14 CHECK BUCKLE SWITCH RH.
Perform the check in accordance with the diag-
nostic procedure DTC 37 of the occupant
detection system. <Ref. to OD(diag)-27, DTC
37 BUCKLE SWITCH RH FAILURE, Diagnostic
Procedure with Diagnostic Trouble Code
(DTC).>
Is there any problem on the
inspection result? Go to step 15 . Replace with new
parts according to
DTC 37.
15 CHECK AIRBAG CONTROL MODULE AND
BODY INTEGRATED UNIT.
Check the airbag control module, occupant
detection sensor and seat belt buckle switch
RH.
Perform the check in accordance with the diag-
nostic procedure DTC 39 of the airbag system.
<Ref. to AB(diag)-62, DTC 39 SEAT BELT
WARNING FAILURE, Diagnostic Chart with
Trouble Code.>
Is there any problem on the
inspection result? Replace the body
integrated unit.
<Ref. to SL-50,
REMOVAL, Body
Integrated Unit.> Replace with new
parts according to
DTC 39.
16 CHECK HARNESS.
1) Disconnect the clock connector.
2) Turn the ignition switch to ON.
3) Measure the voltage between the body inte-
grated unit and the clock.
Connector & terminal
(i59) No. 8 (+) — Chassis ground (–):
Is the voltage 10 V or higher? Go to step 17 . Repair or replace
the harness.
17 CHECK HARNESS.
1) Turn the ignition switch to ON.
2) Disconnect the connector of body inte-
grated unit.
3) Check for a short circuit to battery, open cir-
cuit and short circuit to ground between the
body integrated unit and the clock.
Connector & terminal
(i84) No. 25 — (i59) No. 2:
Is the harness normal? Go to step 18 . Repair or replace
the harness.
18 CHECK CLOCK.
1) Connect the clock connector.
2) Turn the ignition switch to ON.
3) Use an appropriate wiring harness to create
a short between the body integrated unit and
the clock.
Connector & terminal
(i84) No. 25 — Chassis ground:
(i59) No. 2 — Chassis ground:
Does passenger’s seat belt
warning light in the clock illumi-
nate? Replace the body
integrated unit.
<Ref. to SL-50,
REMOVAL, Body
Integrated Unit.> Replace the clock.
<Ref. to IDI-21,
REMOVAL,
Clock.>
19 CHECK DTC.
Read the DTCs for all systems using the Sub-
aru Select Monitor.
Is a DTC detected? Perform a check
according to the
DTC. Go to step
20
.
Step Check Yes No