Diesel Data: Automotive Repair

DTC 3-3

DTC 3-3: Short to Another Wire or Decreased Resistance in Driver's Seat Belt Tensioner

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 seat belt tensioner 2P connector from the floor wire harness (A).
5. Connect the SRS inflator simulator (2 ohms connector) and the simulator lead C to the floor wire harness.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 3-3 indicated?

YES - Go to step 9.

NO - Short in the driver's seat belt tensioner; replace the driver's seat belt.

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




10. Disconnect the driver's airbag 2P connector (A), passenger's airbag 2P connector (B), and passenger's seat belt tensioner 2P connector (C).
11. Disconnect the simulator lead from the floor wire harness.




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




13. Check resistance between the No. 8 terminal and the No. 17 terminal of SRS unit connector A (18P). There should be an open circuit or least 1 M ohms.

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.