| DTC 12-9x (12-90 to 12-99, 12-9A to 12-9F): | Short to Ground in Driver's Airbag First Inflator (RHD type) |
Special Tools Required
SRS inflator simulator ( 07SAZ-TB4011A)
| 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 12-9x or 12-Bx indicated? YES - Go to 3. NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC Troubleshooting Index. |
| 3. | Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes. |
| 4. | Disconnect the driver's airbag 4P connector (A) from the cable reel.
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| 5. | Connect the SRS inflator simulator (2 W connectors) and simulator lead J to the cable reel. |
| 6. | Reconnect the negative cable to the battery. |
| 7. | Erase the DTC memory. |
| 8. | Read the DTC. Is DTC 12-9x or 12-Bx indicated? YES - Go to 9. NO - Short to ground in the driver's airbag first or second inflator; replace the driver's airbag.n |
| 9. | Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes. |
| 10. | Disconnect the dashboard wire harness 4P connector (A) from the cable reel.
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| 11. | Connect the SRS inflator simulator (2 W connectors) and the simulator lead to the dashboard wire harness. |
| 12. | Reconnect the negative cable to the battery. |
| 13. | Erase the DTC memory. |
| 14. | Read the DTC. Is DTC 12-9x or 12-Bx indicated? YES - Go to 15. NO - Short to ground in the cable reel; replace the cable reel.n |
| 15. | Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes. |
| 16. | Disconnect SRS unit connector A (28P) from the SRS unit. |
| 17. | Disconnect the SRS inflator simulator from the SRS simulator lead. |
| 18. | Check resistance between each terminal of both SRS simulator leads and body ground. There should be an open circuit or at least 1 MW.
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.n NO - Short to ground in the dashboard wire harness; replace the dashboard wire harness.n |