22-1x

SRS DTC Troubleshooting: 22-1x (x can be 0 thru 9 or A thru F)

DTC 22-1x ("x" can be 0 thru 9 or A thru F): Open in the Front Passenger's Seat Belt Tensioner

Special Tools Required

- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead K 070AZ-SNAA200
- SRS short canceller 070AZ-SAA0100
NOTE:

- Before doing this troubleshooting procedure, review SRS Precautions and Procedures, Service and Repair General Troubleshooting Information, Reading and Clearing Diagnostic Trouble Codes and Battery Terminal Disconnection and Reconnection. Procedures

- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software, SRS Unit Update and retest.

1. Clear the DTC with the HDS. Reading and Clearing Diagnostic Trouble Codes

2. Turn the ignition switch to ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

3. Check for DTCs with the HDS. Reading and Clearing Diagnostic Trouble Codes

Does the SRS indicator stay on, and is DTC 22-1x indicated?
YES - Go to step 4.

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Reading and Clearing Diagnostic Trouble Codes If another DTC is indicated, troubleshoot the DTC.


4. Turn the ignition switch to LOCK (0).

5. Disconnect the negative cable from the battery, then wait at least 3 minutes.

6. Remove the right side B-pillar lower trim, Interior Trim Removal/Installation - B-Pillar Upper/Lower Trim then disconnect the SRS floor wire harness 4P connector (A) from the front passenger's seat belt tensioner 4P connector.

7. Connect the SRS inflator simulator (2Ohms connectors) and simulator lead K to the SRS floor wire harness.






8. Reconnect the negative cable to the battery.

9. Clear the DTC with the HDS.

10. Check for DTCs with the HDS. Reading and Clearing Diagnostic Trouble Codes

Is DTC 22-1x indicated?
YES - Go to step 11.

NO - Open in the front passenger's seat belt tensioner; replace the front passenger's seat belt, Front Seat Belt Replacement then clear the DTC.


11. Turn the ignition switch to LOCK (0).

12. Disconnect the negative cable from the battery, then wait at least 3 minutes.

13. Disconnect SRS unit connector B (39P) from the SRS unit. Service and Repair

14. Connect a SRS short canceller (070AZ-SAA0100) to SRS unit connector B (39P) terminals No 14 and No. 15.. Service and Repair

15. Measure the resistance between SRS unit connector B (39P) terminals No. 14 and No. 15. There should be 2.0-3.0 Ohms.

Is the resistance as specified?
YES - Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit Check the connection; if the connection is OK, replace the SRS unit.. SRS Unit Replacement

NO - Open in the SRS floor wire harness; replace the SRS floor wire harness, then clear the DTC.