DTC 1-4

DTC 1-4: Short to Power in Driver's Airbag Inflator

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead F 07XAZ-SZ30100

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 slay on?

YES - Go to step 3.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures.

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




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

Is DTC 1-4 indicated?

YES - Go to step 9.

NO - Short to power in the driver's airbag inflator; replace the driver's airbag.

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




10. Disconnect the front passenger's airbag 4P connector (A) from the dashboard wire harness.




11. Disconnect both seat belt tensioner 2P connectors (A) from the floor wire harness.




12. Disconnect SRS unit connector A (18P) from the SRS unit.
13. Disconnect the simulator lead from the cable reel 4P connector.
14. Reconnect the battery negative cable.
15. Turn the ignition switch ON (II).




16. Check for voltage between the No. 7 terminal of SRS unit connector A (18P) and body ground, between the No. 16 terminal and body ground, between the No. 6 terminal and body ground, and between the No. 15 terminal and body ground. There should be 0.5 V or less.

Is the voltage as specified?

YES - Faulty SRS unit; replace the SRS unit.

NO - Go to step 17.

17. Turn the ignition switch OFF.
18. Disconnect the cable reel from the dashboard wire harness.
19. Turn the ignition switch ON (II).




20. Check for voltage between the No. 7 terminal of SRS unit connector A (18P) and body ground, between the No. 16 terminal and body ground, between the No. 6 terminal and body ground, and between the No. 15 terminal and body ground. There should be 0.5 V or less.

Is the voltage as specified?

YES - Replace the cable reel.

NO - Replace the dashboard wire harness.