Subaru IMPREZA GD 2007 Series Manual page 4050

asieps_tobira_IM_US.book 29 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
1 CHECK POOR CONTACT OF CONNEC-
TORS.
Check for poor contact of the connectors
between the occupant detection control module
and belt tension sensor.
2 CHECK THE BELT TENSION SENSOR.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait for 20 sec-
onds or more.
2) Disconnect the belt tension sensor connec-
tor (AB63) from the airbag harness.
3) Connect the test harness AC to the connec-
tor (AB63).
4) Connect the battery ground terminal and
turn the ignition switch to ON.
3 CHECK AIRBAG HARNESS.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait for 20 sec-
onds or more.
2) Disconnect the test harness AC from the
belt tension sensor connector (AB63).
3) Connect the test harness AD (1AD) to the
connector (AB63).
4) Disconnect the airbag harness connector
(AB62), and connect connector (1AB) of test
harness AB.
5) Measure the resistance between test har-
ness terminals.
Connector & terminal
(2AB) No. 5 — (2AD) No. 1:
(2AB) No. 4 — (2AD) No. 3:
(2AB) No. 6 — (2AD) No. 2:
4 CHECK AIRBAG HARNESS.
Measure the resistance between test harness
terminals, and between test harness terminal
and chassis ground.
Connector & terminal
(2AB) No. 4 — (2AD) No. 1:
(2AB) No. 4 — (2AD) No. 2:
(2AB) No. 4 — chassis ground:
(2AB) No. 5 — (2AD) No. 2:
(2AB) No. 5 — chassis ground:
5 CHECK AIRBAG HARNESS.
1) Connect the battery ground terminal and
turn the ignition switch to ON.
2) Measure the voltage between test harness
and chassis ground.
Connector & terminal
(2AD) No. 1 (+) — Chassis ground (–):
(2AD) No. 3 (+) — Chassis ground (–):
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)
Check
Is there poor contact?
Does the airbag warning light
illuminate for approximately 6
seconds and go off?
Is the resistance less than 10
Ω?
Is the resistance 1 MΩ or
more?
Is the voltage 1 V or less?
OD(diag)-29
Yes No
Reconnect the Go to step 2.
connector. If the
fault is not fixed,
replace the airbag
harness.
Go to step 3.
Replace the seat
belt outer. <Ref. to
SB-10, REMOVAL,
Front Seat Belt.>
Go to step 4.
Replace the airbag
harness.
Go to step 5. Replace the airbag
harness.
Replace the airbag Check the occu-
harness. pant detection har-
ness, and if any
fault is found,
replace the occu-
pant detection har-
ness. If no fault is
found in the occu-
pant detection har-
ness, replace the
seat cushion frame
assembly. <Ref. to
SE-8, DISASSEM-
BLY, Front Seat.>