DTC 4-4

DTC 4-4: Short to Power in Front Passenger's Seat Belt Tensioner

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead E 07XAZ-S1A0200
- 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 stay 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 front passenger's seat belt tensioner 2P connector (A) from the right rear door wire harness.
5. Connect the SRS inflator simulator (2 Ohm connector) and the simulator lead to the right rear door wire harness.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 4-4 indicated?

YES - Go to step 9.

NO - Short to power in the front passenger's seat belt tensioner; replace the front passenger's seat belt.

9. Disconnect the battery negative cable, and wait for 3 minutes.




10. Disconnect right rear door wire harness 4P connector C751 (A) from the right rear door subharness.
11. Connect the SRS inflator simulator (2 Ohm connectors) and the simulator lead to the right rear door subharness.
12. Reconnect the battery negative cable.
13. Erase the DTC memory.
14. Read the DTC.

Is DTC 4-4 indicated?

YES - Go to step 15.

NO - Short to power in the right rear door wire harness; replace the right rear door wire harness.

15. Disconnect the battery negative cable, and wait for 3 minutes.




16. Disconnect right rear door subharness 4P connector C557 (A) from the floor wire harness.
17. Connect the SRS inflator simulator (2 Ohm connectors) and the simulator lead to the floor wire harness.
18. Reconnect the battery negative cable.
19. Erase the DTC memory.
20. Read the DTC.

Is DTC 4-4 indicated?

YES - Go to step 21.

NO - Short to power in the right rear door subharness; replace the right rear door subharness.

21. Disconnect the battery negative cable, and wait for 3 minutes.




22. Disconnect floor wire harness 4P connector C404 (A) from dashboard wire harness B.
23. Connect the SRS inflator simulator (2 Ohm connectors) and the simulator lead to dashboard wire harness B.
24. Reconnect the battery negative cable.
25. Erase the DTC memory.
26. Read the DTC.

Is DTC 4-4 indicated?

YES - Go to step 27.

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

27. Disconnect the battery negative cable, and wait for 3 minutes.
28. Disconnect the driver's airbag connector, front passenger's airbag connector, and driver's seat belt tensioner connector.
29. Disconnect SRS unit connector A (18P) from the SRS unit.
30. Disconnect the special tool from dashboard wire harness B.
31. Reconnect the battery negative cable.
32. Turn the ignition switch ON (II).




33. Check for voltage between the No. 9 terminal of SRS unit connectors A (18P) and body ground, and the No. 18 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 - Short to power in dashboard wire harness B; replace dashboard wire harness B.