DTC Troubleshooting: 12-3x (LHD)
DTC Troubleshooting: 12-3x
| DTC 12-3x (12-30 to 12-39, 12-3A to 12-3F): | Short to Another Wire or Decreased Resistance in Front Passenger's Airbag Inflator (LHD) |
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 12-3x 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 for troubleshooting details. |
| 3. | Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes. |
| 4. | Disconnect the front passenger's airbag 2P connector (A) from dashboard wire harness. A07SAZ-TB4011A07TAZ-SZ5011A |
| 5. | Connect the SRS inflator simulator (2 W connector) and the simulator lead to dashboard wire harness. |
| 6. | Reconnect the battery negative cable. |
| 7. | Erase the DTC memory. |
| 8. | Read the DTC. Is DTC 12-3x indicated? YES - Go to 9. NO - Short in the front passenger's airbag inflator; replace the front passenger's airbag.n |
| 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. A |
| 11. | Disconnect the SRS inflator simulator from the SRS simulator lead C. |
| 12. | Connect the SRS short canceller (070AZ-SAA0100) to No.9 and No.10 terminals of SRS unit connector A (28P). |
| 13. | Check resistance between the terminals of the SRS simulator lead C. There should be an open circuit, or at least 1 MW. DASHBOARDWIRE HARNESS 2P CONNECTOR07TAZ-SZ5011A Is the resistance as specified? YES - Replace the SRS unit.n NO - Replace the dashboard wire harness.n |