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DTC 12-30

DTC 12-30: Decreased Resistance in Passenger's Airbag First Inflator

DTC 12-60: Decreased Resistance in Passenger's Airbag Second Inflator

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead F 07XAZ-SZ30100
- SRS short canceller 070AZ-SAA0100

1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is DTC 12-30 or 12-60 indicated?

YES - Go to step 3.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Diagnostic Strategies If another DTC is indicated, go to the DTC Troubleshooting Index. DTC List - Supplemental Restraint System

3. Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.




4. Disconnect the passenger's airbag 4P connector (A) from the SRS main harness.
5. Connect the SRS inflator simulator (2 Ohms connectors) and SRS simulator lead F to the SRS main harness.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 12-30 or 12-60 indicated?

YES - Go to step 9.

NO - Short in the passenger's airbag first or second inflator; replace the passenger's airbag.

9. Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.
10. Disconnect SRS unit connector A (28P) from the SRS unit.
11. Disconnect the SRS inflator simulator from the SRS simulator lead.
12. Connect SRS short cancellers (070AZ-SAA0100) to No. 9 and No. 10 terminals and the No. 3 and No. 4 terminal of the SRS unit connector A (28P).




13. Check resistance between the terminals of the SRS simulator leads. There should be an open circuit or at least 1 MOhm.

Is the resistance as specified?

YES - Faulty SRS unit or poor connection at SRS unit connector A (28P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit.

NO - Short in the SRS main harness; replace the SRS main harness.
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