DTC 4-3
DTC 4-3: Short to another wire or decreased resistance in right side seat belt tensioner1. 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 right side seat belt tensioner 2P connector from the right side wire harness 2P connector (A).
5. Connect the special tool (2 Ohm connector) to the right side wire harness 2P connector.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.
Is DTC 4-3 indicated?
YES - Go to step 9.
NO - Short in the right side seat belt tensioner; replace the right side seat belt.
9. Disconnect the battery negative cable, and wait for 3 minutes.
10. Disconnect the driver's airbag connector (A), front passenger's airbag connector (B), and left side seat belt tensioner connector (C).
11. Disconnect SRS unit connector A (18P) from the SRS unit.
12. Disconnect the special tool (2 Ohm) from the right side wire harness 2P connector.
13. Check resistance between the No.9 terminal and the No. 18 terminal of SRS unit connector A(18P). There should be 1 M Ohm or more.
Is the resistance as specified?
YES - Faulty SRS unit; replace the SRS unit.
NO - Short in the SRS main harness or the right side wire harness; replace the faulty harness.