AB(diag)-159
Diagnostic Chart with Trouble Code
AIRBAG SYSTEM (DIAGNOSTICS)
2
CHECK AIRBAG REAR HARNESS (BE-
TWEEN AIRBAG CONTROL MODULE AND
SIDE AIRBAG SENSOR LH).
1) Turn the ignition switch to OFF, disconnect
the battery ground cable, and wait for 60 sec-
onds or more.
2) Disconnect the connector (AB21) from seat
belt pretensioner (LH).
3) Disconnect the connector (AB31) from cur-
tain airbag module (LH).
4) Disconnect connector (AB19) of the side
airbag module (LH).
5) Disconnect the connectors (AB17, AB6,
AB18) from airbag control module.
6) Connect the connector (1AH) in the test har-
ness AH to the connectors (AB17, AB6, AB18).
7) Connect the connector (2AH) in the test har-
ness AH and the connector (1AG) in the test
harness AG.
8) Disconnect the connector (AB23) from side
airbag sensor (LH), and connect the connector
(2V) in test harness V to connector (AB23).
9) Measure the resistance between connector
(5AG) in the test harness AG and connector
(3V) in the test harness V.
Connector & terminal
(5AG) No. 9 — (3V) No. 2:
(5AG) No. 10 — (3V) No. 1:
Is the resistance less than 10
Ω?
Go to step
3.
Replace the airbag
rear harness along
with body harness.
3
CHECK AIRBAG REAR HARNESS (BE-
TWEEN AIRBAG CONTROL MODULE AND
SIDE AIRBAG SENSOR LH).
Measure the resistance between connector
(5AG) in the test harness AG and chassis
ground, and the resistance between connector
(5AG) terminals in the test harness AG.
Connector & terminal
(5AG) No. 9 — Chassis ground:
(5AG) No. 10 — Chassis ground:
(5AG) No. 9 — (5AG) No. 10:
Is the resistance 1 MΩ or
more?
Go to step
4.
Replace the airbag
rear harness along
with body harness.
4
CHECK AIRBAG REAR HARNESS (BE-
TWEEN SIDE AIRBAG SENSOR LH AND
CURTAIN AIRBAG SENSOR LH).
1) Disconnect the connector (2V) in the test
harness V from the connector (AB23) of side
airbag sensor (LH).
2) Connect the connector (AB23) of side air-
bag sensor (LH) and the connector (1AI) in the
test harness AI.
3) Connect the connector (2AI) in the test har-
ness AI and the connector (1V) in the test har-
ness V.
4) Disconnect the connector (AB32) from cur-
tain airbag sensor (LH), and connect the con-
nector (2V) in test harness V to connector
(AB32).
5) Measure the resistance between connector
(3V) terminals in the test harness V.
Connector & terminal
(3V) No. 2 — (3V) No. 6:
(3V) No. 1 — (3V) No. 7:
Is the resistance less than 10
Ω?
Go to step
5.
Replace the airbag
rear harness along
with body harness.
Step
Check
Yes
No