Diesel Data: Automotive Repair

DTC 1-3

DTC 1-3: Short to Another Wire or Decreased Resistance in Driver's Airbag Inflator

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead C 07TAZ-SZ5011A

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?

YES - Go to step 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, then disconnect the battery negative cable, and wait for 3 minutes.




4. Disconnect the driver's airbag 2P connector from the cable reel (A).

5. Connect the SRS inflator simulator (2 ohms connector) and the simulator lead C to the cable reel.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 1-3 indicated?

YES - Go to step 9.

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

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




10. Disconnect the cable reel 2P connector from the floor wire harness (A).
11. Connect the SRS inflator simulator (2 ohms. connector) and the simulator lead C to the floor wire harness.
12. Reconnect the battery negative cable.
13. Erase the DTC memory.
14. Read the DTC.

Is DTC 1-3 indicated?

YES - Go to step 15.

NO - Short in the cable reel; replace the cable reel.

15. Turn the ignition switch OFF, then disconnect the battery negative cable, and wait for 3 minutes.




16. Disconnect the passenger's airbag 2P connector (A).




17. Disconnect both seat belt tensioner 2P connectors (A).
18. Disconnect the simulator lead from the floor wire harness.




19. Disconnect SRS unit connector A (18P) from the SRS unit.




20. Check resistance between the No. 7 terminal and the No. 16terminal of the SRS unit connector A (18P). There should be an open circuit or at least 1M Ohm.

Is the resistance as specified?

YES - Faulty SRS unit; replace the SRS unit.

NO - Short in the floor wire harness; replace the floor wire harness.