DTC 24
DTC 24 |
DTC DTTECTING CONDITION:
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Airbag
control module is faulty.
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Airbag main harness circuit is open.
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Fuse No, 11 (in joint box) is blown.
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Body harness circuit is open.
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Important | ||
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Before diagnosing the airbag
system, be sure to turn the ignition switch to OFF, disconnect the ground
cable from battery, and wait more than 20 seconds before starting
to work.
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Before replacing the airbag module, seat belt pretensioner
roll connector, control module, and sensor, reconnect each part
and confirm that the warning light operates properly.
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• |
When inspecting the airbag main harness, disconnect
the driver’s airbag module and passenger’s airbag
module connectors for safety reasons.
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WIRING DIAGRAM:
CHECK AIRBAG CONTROL MODULE.
Turn the ignition switch to OFF, disconnect the battery ground cable, and wait more than 20 seconds.Disconnect the connector (AB3) from the airbag control module.
Connect the connector (1R) in test harness R to connector (AB3).
Connect the battery ground cable and turn the ignition switch to ON.
Measure the voltage between connector (2R) in test harness R and chassis ground.
Connector & terminal
(2R) No. 1 (+) — Chassis ground (−):
Is the voltage more than 10 V?
Yes |
Replace the airbag control module.
No |
CHECK AIRBAG MAIN HARNESS.
While checking control module, turn the ignition switch to OFF and disconnect the battery ground cable. Wait more than 20 seconds before operation.Disconnect the airbag connector (AB1) from the body harness (B31).
Connect the connector (2M) in test harness M to connector (AB1).
Measure the resistance between connector (5M) in test harness M and the connector (2R) in test harness R.
Connector & terminal
(5M) No. 2 — (2R) No. 1:
Is the resistance less than 10 Ω?
Yes |
No |
Replace the body harness with airbag main harness.
CHECK AIRBAG MAIN HARNESS.
Measure the following resistance with the above-mentioned condition maintained.Connector & terminal
(5M) No. 2 — Chassis ground: (2R) No. 1 — Chassis ground:
Is the resistance more than 1 MΩ?
Yes |
No |
Replace the body harness with airbag main harness.
CHECK FUSE NO. 11 (IN JOINT BOX).
Confirm that the ignition switch is turned OFF.Remove the fuse No. 11 (in joint box) and perform visual inspection.
Is the fuse No. 11 blown out?
Yes |
Replace the fuse No. 11. If fuse No. 11 is blown out again, repair the body harness.
No |
Repair the body harness.