DTC 22-91

DTC 22-91: Short to Ground in Front Passenger's Seat Belt 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, and is DTC 22-91 indicated?

YES - Go to step 3.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview 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 22-91 indicated?

YES - Go to step 9.

NO - Short to ground 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. Check resistance 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 an open circuit or at least 1 KOhm.

Is the resistance 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 ground in the right side wire harness; replace the right side wire harness.