Subaru 2009 IMPREZA Service Manual page 2939

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
F: DTC 37 BUCKLE SWITCH RH FAILURE
DTC DETECTING CONDITION:
• Passenger's buckle switch circuit is open, shorted or shorted to ground.
• Seat harness circuit is open, shorted or shorted to ground.
• Occupant detection control module is faulty.
WIRING DIAGRAM:
Step
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the occupant detection control module
and buckle switch.
2 CHECK BUCKLE SWITCH.
1) Turn the ignition switch to OFF, disconnect
the battery ground terminal, and wait for 20 sec-
onds.
2) Disconnect the buckle switch connector
(AB60).
3) Connect the test harness AE1 and test har-
ness connector Y to the buckle switch connec-
tor (AB60).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
BUCKLE SWITCH
AB60
AB61
OCCUPANT DETECTION
CONTROL MODULE
Is there poor contact?
Does the airbag warning light
illuminate for 6 seconds and go
off?
OD(diag)-27
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
Check
Reconnect the
connector. If the
fault is not fixed,
replace the airbag
harness.
Replace the buckle
switch. <Ref. to
SB-17, INNER
SEAT BELT
ASSEMBLY,
REMOVAL, Front
Seat Belt.>
AB60
1 2
AB61
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18
OD-00075
Yes No
Go to step 2.
Check the seat
harness, and if any
fault is found,
replace the seat
harness. If the fault
is not fixed, replace
the occupant
detection system.