AB(diag)-81
AIRBAG SYSTEM (DIAGNOSTICS)
Diagnostic Chart with Trouble Code
Step
Check
Yes
No
1
CHECK AIRBAG REAR HARNESS (CUR-
TAIN AIRBAG SENSOR HARNESS RH).
1) Turn the ignition switch OFF, disconnect the
battery ground cable, and wait more than 20
seconds.
2) Disconnect the connector (AB26) from seat
belt pretensioner (RH).
3) For the model with lap seat belt preten-
sioner, disconnect the connector (AB30) from
lap seat belt pretensioner.
4) Disconnect the connector (AB24) from side
airbag module (RH).
5) Disconnect the connector (AB33) from
(AB40).
6) Disconnect the connector (AB18) from air-
bag control module.
7) Connect the connector (1U) in the test har-
ness U to connector (AB18).
8) Disconnect the connector (AB34) from cur-
tain airbag sensor (RH), and connect the con-
nector (2V) in test harness V to connector
(AB34).
9) Measure the resistance between connector
(5U) in the test harness U and connector (3V)
in the test harness V.
Connector & terminal
(5U) No. 14 — (3V) No. 4:
(5U) No. 16 — (3V) No. 5:
(5U) No. 15 — (3V) No. 1:
(5U) No. 13 — (3V) No. 2:
Is the resistance less than 10
Ω?
Go to step 2.
Replace the airbag
rear harness with
body harness.
2
CHECK AIRBAG REAR HARNESS (CUR-
TAIN AIRBAG SENSOR HARNESS RH).
Measure the resistance between connector
(5U) in the test harness U and chassis ground.
Connector & terminal
(5U) No. 14 — Chassis ground:
(5U) No. 16 — Chassis ground:
(5U) No. 15 — Chassis ground:
(5U) No. 13 — Chassis ground:
Is the resistance more than 1
M
Ω?
Replace the cur-
tain airbag sensor
(RH). <Ref. to AB-
24, Curtain Airbag
Sensor.> When
the sensor is not
OK though the
sensor is replaced,
replace the airbag
control module.
<Ref. to AB-22,
Airbag Control
Module.>
Replace the airbag
rear harness with
body harness.