Subaru Legacy 2005 Service Manual page 3700

SEAT BELT SYSTEM
2. PASSENGER'S SEAT
Step
1 CHECK BODY INTEGRATED MODULE.
Check DTC of body integrated module using
Subaru Select Monitor. <Ref. to LAN(diag)-14,
OPERATION, Subaru Select Monitor.>
2 CHECK VEHICLE SPEED SIGNAL.
Check DTC of ABS or vehicle dynamics control
(VDC) using Subaru Select Monitor. <Ref. to
ABS(diag)-15, OPERATION, Subaru Select
Monitor.> or <Ref. to VDC(diag)-16, OPERA-
TION, Subaru Select Monitor.>
3 CHECK BODY INTEGRATED MODULE.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON (engine
OFF).
3) Turn the Subaru Select Monitor power
switch to ON.
4) Read the data of "P seatbelt SW input"
using Subaru Select Monitor. <Ref. to
LAN(diag)-14, OPERATION, Subaru Select
Monitor.>
4 CHECK SEAT BELT WARNING LIGHT.
Read the data of "P-belt warning light O/P"
using Subaru Select Monitor. <Ref. to
LAN(diag)-14, OPERATION, Subaru Select
Monitor.>
5 CHECK BODY INTEGRATED MODULE.
1) Insert the tongue plate into the passenger's
seat belt buckle.
2) Read the data of "P seatbelt SW input"
using Subaru Select Monitor. <Ref. to
LAN(diag)-14, OPERATION, Subaru Select
Monitor.>
6 CHECK SEAT BELT WARNING LIGHT.
Read the data of "P-belt warning light O/P"
using Subaru Select Monitor. <Ref. to
LAN(diag)-14, OPERATION, Subaru Select
Monitor.>
7 CHECK VEHICLE MODEL.
8 CHECK SEAT BELT WARNING SYSTEM.
1) Hold the tang plate disconnected from seat
belt buckle.
2) Turn the ignition switch to ON.
Seat Belt Warning System
Is DTC displayed?
Is DTC displayed?
Is the data of "P seatbelt SW
input" "OFF"?
Is the data of "P-belt warning
light O/P" "ON"? Or does the
passenger's seat belt warning
light illuminate?
Is the data of "P seatbelt SW
input" "ON"?
Is the data of "P-belt warning
light O/P" "OFF"? Or is the
passenger's seat belt warning
light off?
Is the vehicle EC, EK or KA
model?
Does the seat belt warning
light illuminate?
SB-12
Check
Perform the diag-
nosis according to
DTC.
Perform the diag-
nosis according to
DTC.
Go to step 4.
Go to step 5.
Go to step 6.
Go to step 7.
Go to step 8.
Go to step 9.
Yes No
Go to step 2.
Go to step 3.
Check the harness
between body inte-
grated module and
chassis ground.
Check the harness
between ignition
switch and body
integrated module.
Check the body
integrated module.
Check the harness
between ignition
switch and body
integrated module.
The seat belt
warning light sys-
tem is normal at
this time.
A temporary poor
contact of har-
ness connector
may be the cause.
Check the poor
contact.
Check the body
integrated module.