DTC 3-5

DTC 3-5: Short to Ground 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.

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




4. Disconnect the driver's seat belt tensioner 2P connector from the left side wire harness 2P connector (A).
5. Connect the special tool (2 Ohm connector) to the left side wire harness 2P connector.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 3-5 indicated?

YES - Go to step 9.

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

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




10. Disconnect the SRS main harness 2P connector C 551 (A) from the left side wire harness 2P connector (B).
11. Connect the special tool (2 Ohm connectors) to the SRS main harness 2P connector.
12. Reconnect the battery negative cable.
13. Erase the DTC memory.
14. Read the DTC.

Is DTC 3-5 indicated?

YES - Go to step 15.

NO - Short to ground in the left side wire harness; replace the left side wire harness.

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




16. Disconnect the driver's airbag connector (A), front passenger's airbag connector (B), and front passenger's seat belt tensioner connector (C).




17. Disconnect SRS unit connector A (18P) from the SRS unit.
18. Disconnect the special tool from the SRS main harness 2P connector.




19. Check resistance between the No.8 terminal of SRS unit connector A (18P) and body ground, and between the No.17 terminal and body ground. There should be an open circuit, or at least 1 MOhm

Is the resistance as specified?

YES - Faulty SRS unit; replace the SRS unit.

NO - Go to step 20.




20. Disconnect the SRS main harness 28P connector (A) from the SRS floor harness 28P connector C851 (B).




21. Check resistance between the No.5 terminal of the SRS main harness 28P connector and body ground, between the No.14 terminal and body ground. There should be an open circuit, or at least 1 MOhm.


Is the resistance as specified?

YES - Replace the SRS main harness.

NO - Replace the SRS floor harness.