Subaru IMPREZA GD 2007 Series Manual page 3614

asieps_tobira_IM_US.book 71 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Step
1 CHECK POOR CONTACT OF CONNECTORS.
Check for poor contact of the connectors
between the airbag control module and the front
sub sensor (RH).
2 CHECK AIRBAG MAIN HARNESS (FRONT
SUB SENSOR RH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait for 20 sec-
onds or more.
2) Remove the instrument panel lower cover
and disconnect the connectors (AB26) and
(AB2).
3) Remove the instrument panel side cover on
the passenger's side and disconnect the con-
nectors (AB27) and (AB4).
4) Disconnect the connector (AB3) from airbag
control module.
5) Connect the connector (1R) in the test har-
ness R to connector (AB3).
6) Disconnect the front sub sensor (RH), and
then connect the connector (1H) in the test har-
ness H to connector (AB15).
7) Measure the resistance between connector
(3R) in the test harness R and connector (3H) in
the test harness H.
Connector & terminal
(3R) No. 7 — (3H) No. 5:
(3R) No. 9 — (3H) No. 6:
3 CHECK AIRBAG MAIN HARNESS (FRONT
SUB SENSOR RH).
Measure resistance between connector (3R) in
the test harness R and chassis ground.
Connector & terminal
(3R) No. 7 — Chassis ground:
(3R) No. 9 — Chassis ground:
4 CHECK AIRBAG CONTROL MODULE.
1) Connect all connectors.
2) Erase the memory.
3) Perform the Inspection Mode.
4) Read the DTC.
5 CHECK FOR ANY OTHER DTC ON DISPLAY. Is any other DTC displayed?
Diagnostic Chart with Trouble Code
Is there poor contact?
Is the resistance less than 10
Ω?
Is the resistance 1 MΩ or
more?
Is the same DTC displayed?
AB(diag)-71
AIRBAG SYSTEM (DIAGNOSTICS)
Check Yes
Repair the connec-
tor.
Go to step 3.
Replace the front
sub sensor (RH).
<Ref. to AB-20,
Front Sub Sen-
sor.>
Replace the airbag
control module if
not operating nor-
mally even after
replacing the sen-
sor. <Ref. to AB-
17, Airbag Control
Module.>
Replace the airbag
control module.
<Ref. to AB-17,
Airbag Control
Module.>
Check DTC using
"List of Diagnostic
Trouble Code
(DTC)". <Ref. to
AB(diag)-43, List
of Diagnostic Trou-
ble Code (DTC).>
No
Go to step 2.
Replace the airbag
main harness
along with body
harness.
Go to step 4.
Go to step 5.
Finish the diagno-
sis.