DTC 22-4

DTC 22-4: Short to Power in Front Passenger's Seat Belt Buckle Tensioner

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- 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 buckle tensioner 4P connector (A) from the floor wire harness.
5. Connect the inflator simulator (2 ohm connectors) and the simulator lead F to the floor wire harness 4P connector.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 22-4 indicated?

YES - Go to step 9.

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

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




10. Disconnect both side airbag 2P connectors (A) and the driver's seat belt buckle tensioner 4P connector (B).




11. Disconnect SRS unit connector B (18P) from the SRS unit.
12. Disconnect the simulator lead from the floor wire harness 4P connector.
13. Reconnect the battery negative cable.
14. Turn the ignition switch ON (II).




15. Check for voltage between the No. 2 terminal of SRS unit connector B (18P) and body ground, and between the No. 11 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 the floor wire harness; replace the floor wire harness.