DTC 62-1x
DTC 62-1x ("x" can be 0 thru 9 or A thru F): Open in Front Passenger's Seat Belt Buckle SwitchNOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.
1. Clear the DTC memory.
2. Connect the HDS to the data link connector (DLC).
3. Turn the ignition switch 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, troubleshoot the DLC circuit.
5. From the system menu on the HDS, select SRS, then select SRS again, then select PARAMETER INFORMATION, then Buckle Switch, Seat Position Sensor, and check the status on the HDS screen for FRONT RIGHT SEAT BELT BUCKLE SWITCH.
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 14.
- If OPEN is indicated either when the front passenger's seat belt is buckled or unbuckled, go to step 23.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Troubleshooting Intermittent Failures If another DTC is indicated, troubleshoot the DTC.
6. Turn the ignition switch OFF.
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 the No. 1 and No. 3 terminals of the front passenger's seat belt buckle switch 3P connector. There should be 0 - 1 ohm.
Is the resistances specified?
YES - Go to step 9.
NO - Replace the front passenger's seat belt buckle assembly, then erase the DTC.
9. Disconnect the negative cable from the battery, then wait for 3 minutes.
10. Disconnect both seat belt tensioner 4P connectors.
11. Disconnect both lap belt tensioner 2P connectors.
12. Disconnect SRS unit connector B (28P) from the SRS unit.
13. Measure the resistance between the No. 16 terminal of SRS unit connector B (28P) and the No. 3 terminal of the floor wire harness 3P connector. There should be 0 - 1 ohm.
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.
NO - Open in the floor wire harness; replace the floor wire harness.
14. Turn the ignition switch OFF.
15. Disconnect the floor wire harness 3P connector from the front passenger's seat belt buckle switch 3P connector (A).
16. Unbuckle the front passenger's seat belt.
17. Measure the resistance between the No. 1 and No. 2 terminals of the front passenger's seat belt buckle switch 3P connector. There should be 0 - 1 ohm.
Is the resistance as specified?
YES - Go to step 18.
NO - Replace the front passenger's seat belt buckle assembly, then clear the DTC.
18. Disconnect the negative cable from the battery, then wait for 3 minutes.
19. Disconnect both seat belt tensioner 4P connectors.
20. Disconnect both lap belt tensioner 2P connectors.
21. Disconnect SRS unit connector B (28P) from the SRS unit.
22. Measure the resistance between the No. 15 terminal of SRS unit connector B (28P) and the No. 2 terminal of the floor wire harness 3P connector. There should be 0 - 1 ohm.
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.
NO - Open in the floor wire harness; replace the floor wire harness.
23. Turn the ignition switch OFF.
24. Disconnect the floor wire harness 3P connector from the front passenger's seat belt buckle switch 3P connector (A).
25. Unbuckle the front passenger's seat belt.
26. Measure the resistance between the No. 1 terminal of the floor wire harness 3P connector and body ground. There should be 0 - 1 ohm.
Is the resistance as specified?
YES - Replace the front passenger's seat belt buckle assembly, then erase the DTC.
NO - Open in the floor wire harness or poor ground connection at G501. If G501 is OK, replace the floor wire harness.