Operation CHARM: Car repair manuals for everyone.

DTC 3-5

DTC 3-5: Short to ground in left side seat belt tensioner

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 3-5 indicated?

YES - Go to step 9.

NO - Short to ground 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 3-5 indicated?

YES - Go to step 15.

NO - Short to ground in the 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. Disconnect the special tool from the SRS main harness 4P 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 1 M Ohm or more.

Is the resistance as specified?

YES - Faulty SRS unit; replace the SRS unit.

NO - Short to ground in SRS main harness; replace the SRS main harness.