DTC 22-81
DTC 22-81: Short to Power in Front Passenger's Seat Belt TensionerSpecial 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, and is DTC 22-81 indicated?
YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Troubleshooting Intermittent Failures If another DTC is indicated, go to the DTC Troubleshooting Index. Diagnostic Trouble Code Descriptions
3. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
4. Disconnect the right side wire harness 4P connector (A) from the front passenger's seat belt tensioner.
5. Connect the SRS inflator simulator (2 ohms connectors) and simulator lead F to the right side wire harness.
6. Reconnect the negative cable to the battery.
7. Erase the DTC memory.
8. Read the DTC.
Is DTC 22-81 indicated?
YES - Go to step 9.
NO - Short to power in the front passenger's seat belt tensioner; replace the front passenger's seat belt.
9. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
10. Disconnect the driver's seat belt tensioner connector.
11. Disconnect SRS unit connector B (28P) from the SRS unit.
12. Disconnect the simulator lead from the right side wire harness.
13. Reconnect the negative cable to the battery.
14. Turn the ignition switch ON (II).
15. Check for voltage between the No. 3 terminal of SRS unit connector B (28P) and body ground, and between the No. 4 terminal and body ground. There should be 0.5 V or less.
Is the voltage as specified?
YES - Faulty SRS unit or poor connection at SRS unit connector B (28P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit.
NO - Short to power in the right side wire harness; replace the right side wire harness.