62-1x

SRS DTC Troubleshooting: 62-1x (x can be 0 thru 9 or A thru F)

DTC 62-1x ("x" can be 0 thru 9 or A thru F):Open in the Front Passenger's Seat Belt Buckle Switch

NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures, Technician Safety Information General Troubleshooting Information, Initial Inspection and Diagnostic Overview and Battery Terminal Disconnection and Reconnection. Procedures

1. Clear the DTC memory. Initial Inspection and Diagnostic Overview

2. Connect the HDS to the data link connector (DLC).

3. Turn the ignition switch to ON (II), then buckle and unbuckle the front passenger's seat belt several times.

4. Make sure the HDS communicates with the vehicle and the SRS unit, If it does not communicate, troubleshoot the DLC circuit. Testing and Inspection

5. From the Main Menu on the HDS, select SRS, then PARAMETER INFORMATION. In the PARAMETER INFORMATION Menu, select FRONT RIGHT BUCKLE.

Is OPEN indicated?
YES -
- If OPEN is indicated only when the front passenger's seat belt is buckled, go to step 6.

- If OPEN is indicated only when the front passenger's seat belt is unbuckled, go to step 13.

- If OPEN is indicated only when the front passenger's seat belt is buckled and unbuckled, go to step 21.


NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, troubleshoot the DTC.


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

7. Disconnect the floor wire harness 3P connector from the front passenger's seat belt buckle switch 3P connector (A).






8. Buckle the front passenger's seat belt. Measure the resistance between front passenger's seat belt buckle switch 3P connector terminals No. 1 and No. 3. There should be less than 1.0 Ohms.

Is the resistances specified?
YES - Go to step 9.

NO - Replace the front passenger's seat belt buckle assembly, Front Seat Belt Replacement then clear the DTC.






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

10. Disconnect both seat belt buckle tensioner 4P connectors Technician Safety Information and the both seat belt tensioner 4P connectors. Technician Safety Information

11. Disconnect SRS unit connector B (28P) from the SRS unit. Technician Safety Information

12. Measure the resistance between SRS unit connector B (28P) terminal No. 16 and front passenger's seat wire harness 3P connector terminal No. 1. There should be less than 1.0 Ohms.

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 between the connector and the SRS unit. If the connection is OK, replace the SRS unit. SRS Unit Replacement

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






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

14. Disconnect the floor wire harness 3P connector from the front passenger's seat belt buckle switch 3P connector (A).

15. Unbuckle the front passenger's seat belt.






16. Measure the resistance between front passenger's seat belt buckle switch 3P connector terminals No. 1 and No. 2. There should be less than 1.0 Ohms.

Is the resistance as specified?
YES - Go to step 17.

NO - Replace the front passenger's seat belt buckle assembly, Front Seat Belt Replacement then clear the DTC.






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

18. Disconnect both seat belt buckle tensioner 4P connectors Technician Safety Information and the both seat belt tensioner 4P connectors. Technician Safety Information

19. Disconnect SRS unit connector B (28P) from the SRS unit. Technician Safety Information

20. Measure the resistance between SRS unit connector B (28P) terminal No. 15 and floor wire harness 3P connector terminal No. 2. There should be less than 1.0 Ohms.

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 between the connector and the SRS unit. If the connection is OK, replace the SRS unit. SRS Unit Replacement

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






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

22. Disconnect the floor wire harness 3P connector from the front passenger's seat belt buckle switch 3P connector (A).

23. Unbuckle the front passenger's seat belt.






24. Measure the resistance between floor wire harness 3P connector terminal No. 1 and body ground. There should be less than 1.0 Ohms.

Is the resistance as specified?
YES - Replace the front passenger's seat belt buckle assembly, Front Seat Belt Replacement then clear the DTC.

NO - Open in the floor wire harness or poor ground connection at G602.

If G602 is OK, replace the floor wire harness, then clear the DTC.