DTC 3-1

DTC 3-1: Open in left side seat belt tensioner DTC

1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator light comes on for about 6 seconds and then goes off.

Does the SRS indicator Light 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 left side 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 3-1 or DTC 3-2 indicated?

YES - Go to step 9.

NO - Open or increased resistance in left side seat belt tensioner; replace the left side seat belt.

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




10. Disconnect the left side wire harness 4P connector C557 (A) from the SRS main harness 4P connector.
11. Connect the special tool (2 Ohm connectors) to the SRS main harness 4P connector.
12. Reconnect the battery negative cable.
13. Erase the DTC memory.
14. Read the DTC.

Is DTC 3-1 or DTC 3-2 indicated?

YES - Go to step 15.

NO - Open or increased resistance in left side wire harness; replace the left side wire harness.

15. 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 right side seat belt tensioner connector (C).




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




18. Check resistance between the No. 8 terminal and the No.17 terminal of SRS unit connector A (18P). There should be 2.0 - 3.0 Ohm.

Is the resistance as specified?

YES - Faulty SRS unit or poor contact at SRS unit connector A(18P) and at the SRS unit. Check the connection. If the connection is OK, replace the SRS unit.

NO - Open or increased resistance in the SRS main harness; replace the SRS main harness.