AB-47
AIRBAG SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
Check
Yes
No
1
CHECK DRIVERS AIRBAG MODULE.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 seconds.
2) Remove the driver’s airbag module. <Ref.
to AB-14, Driver’s Airbag Module.>
3) Connect the connector (1N) in test harness
N to connector (AB2).
4) Connect the airbag resistor to connector
(2N) in test harness N.
5) Connect the battery ground cable and turn
the ignition switch to ON.
Is the airbag warning light
turned on normally?
Replace the
driver’s airbag
module. <Ref. to
AB-14, Driver’s
Airbag Module.>
2
CHECK ROLL CONNECTOR.
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait more than
20 second.
2) Disconnect the test harness N from the
connector (AB2).
3) Remove the instrument panel lower cover,
disconnect the connector (AB26) from (AB21)
and connect the connector (1F) in test harness
F to connector (AB21).
4) Connect the airbag resistor to connector
(3F) in test harness F.
5) Connect the battery ground cable and turn
the ignition switch to ON.
Is the airbag warning light turn
on normally?
Replace the roll
connector. <Ref. to
AB-20, Roll Con-
nector.>
3
CHECK AIRBAG MAIN HARNESS.
1) Turn the ignition switch to OFF, disconnect
the ground cable, and wait more than 20 sec-
onds.
2) Disconnect the airbag resistor from the
connector (3F) in test harness F.
3) Remove the glove box, and disconnect con-
nectors (AB4) and passenger’s airbag module
(AB27). <Ref. to AB-15, Passenger’s Airbag
Module.>
4) Disconnect the connector (AB3) from the
airbag control module, and connect the con-
nector (1R) in test harness R. <Ref. to AB-18,
Airbag Control Module.>
5) Measure the resistance between connector
(2R) in test harness R and the connector (3F)
in test harness F.
Connector & terminal
(2R) No. 2 — (3F) No. 4:
(2R) No. 4 — (3F) No. 3:
Is the resistance less than 10
Ω
?
Replace the airbag
main harness with
body harness.
4
CHECK AIRBAG MAIN HARNESS.
Measure the resistance of the connector (2R)
in test harness R.
Connector & terminal
(2R) No. 2 — (2R) No. 4:
(2R) No. 4 — Chassis ground:
(2R) No. 2 — Chassis ground:
Is the resistance more than 1
M
Ω
?
Replace the airbag
control module.
<Ref. to AB-18,
Airbag Control
Module.>
Replace the airbag
main harness with
body harness.
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