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DIAGNOSTIC PROCEDURES
(1) Check clock spring
CAUTION
If it is not handled properly, the airbag assembly may be triggered and deployed, leading to serious injury to a
person. Therefore, prior to handling, read the service cautions carefully.
See service cautions for SRS.
 Do the related parts of the clock spring work normal? (Are the pins correctly correlated? There should
be no unnecessary short or open circuit, etc). If possible, use a new clock spring to replace the present
one.
Normal: continue with next step.
Abnormal: replace the clock spring.
See SRS-Clock Spring, Removal & Installation.
(2) Ascertain the trouble exists in driver airbag assembly or other parts
1 Replace with a new driver airbag assembly.
2 Reconnect the negative (-) terminal cable of the battery.
3 Turn the ignition switch ON.
4 Any DTC displayed? Can it be cleared?
Yes: replace the driver airbag assembly.
See SRS- Driver Airbag Assembly, Removal & Instillation.
No: continue with next step.
(3) Check the connector of clock spring wire harness
1 Turn the ignition switch to LOCK.
2 Loosen the negative (-) terminal cable from the battery and wait for over 1 minute.
3 Remove steering column hood.
4 Loosen the connector of the clock spring.
5 Are the connectors of the clock spring normal? (Are the pins correctly correlated? There should be no
unnecessary short or open circuit, etc). If possible, use a new clock spring to replace the present one.
Normal: continue with next step.
Abnormal: replace the wire harness.
See SRS-Clock Spring, Removal & Installation.
(4) Check the wire harness between clock spring and SRS ECU
1 Turn the ignition switch to LOCK.
2 Loosen the negative (-) terminal cable from the battery and wait for over 1 minute.
3 Remove glove box (along with passenger airbag assembly).
4 Loosen passenger airbag assembly connectors.
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