Subaru IMPREZA GD 2007 Series Manual page 4052

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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 THE BUCKLE SWITCH.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait for 20 sec-
onds or more.
2) Disconnect the buckle switch connector
(AB66).
3) Connect the test harness AE (1AE) and test
harness connector Y to the buckle switch con-
nector (AB66).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
BUCKLE SWITCH
AB66
OCCUPANT DETECTION
CONTROL MODULE
Check
Is there poor contact?
Does the airbag warning light
illuminate for 6 seconds and go
off?
OD(diag)-31
AB66
1 2
OD-00062
Yes No
Go to step 2.
Reconnect the
connector. If the
fault is not fixed,
replace the airbag
harness.
Replace the buckle Check the occu-
switch. <Ref. to pant detection har-
SB-10, REMOVAL, ness, and if any
Front Seat Belt.> fault is found,
replace the occu-
pant detection har-
ness. If the fault is
not fixed, replace
the occupant
detection system.