DTC 61-1x
DTC 61-1x ("x" can be 0 thru 9 or A thru F): Open in Driver'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. Turn the ignition switch ON (II), then buckle and unbuckle the driver's seat belt several times.
3. Read the DTC.
Is DTC 61-1x indicated?
YES - Go to step 4.
NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Troubleshooting Intermittent Failures If another DTC is indicated, troubleshoot the DTC.
4. From the system selection 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 LEFT SEAT BELT BUCKLE SWITCH.
- If UNBUCKLED is indicated only when the driver's seat belt is buckled, go to step 5.
- If BUCKLED is indicated only when the driver's seat belt is unbuckled, go to step 12.
- If OPEN is indicated only when the driver's seat belt is buckled and unbuckled, go to step 20.
5. Turn the ignition switch OFF.
6. Disconnect the driver's seat wire harness 3P connector from the driver's seat belt buckle switch 3P connector (A).
7. Buckle the driver's seat belt. Check resistance between the No. 1 and No. 3 terminals of the driver's seat belt buckle switch 3P connector. There should be 0-1 ohm.
Is the resistance as specified?
YES - Go to step 8.
NO - Replace the driver's seat belt buckle assembly, then clear the DTC.
8. Disconnect the negative cable from the battery, then wait for 3 minutes.
9. Disconnect both seat belt tensioner connectors and both seat belt buckle tensioner connectors.
10. Disconnect SRS unit connector B (28P) from the SRS unit.
11. Measure the resistance between the No. 12 terminal of SRS unit connector B (28P) and the No. 1 terminal of the driver's seat 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 SRS wire harness, driver's seat wire harness or poor connection at C701. Check the connection; if the connection is OK, replace the faulty harness.
12. Turn the ignition switch OFF.
13. Disconnect the driver's seat wire harness 3P connector from the driver's seat belt buckle switch 3P connector (A).
14. Unbuckle the driver's seat belt.
15. Measure the resistance between the No. 2 and No. 3 terminals of the driver's seat belt buckle switch 3P connector. There should be 0-1 ohm.
Is the resistance as specified?
YES - Go to step 16.
NO - Replace the driver's seat belt buckle assembly, then erase the DTC.
16. Disconnect the negative cable from the battery, then wait for 3 minutes.
17. Disconnect the seat belt tensioner 4P connectors and both seat belt buckle tensioner 4P connectors.
18. Disconnect SRS unit connector B (28P) from the SRS unit.
19. Measure the resistance between the No. 11 terminal of SRS unit connector B (28P) and the No. 2 terminal of the driver's seat 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 SRS wire harness, driver's seat wire harness or poor connection at C701. Check the connection; if the connection is OK, replace the faulty harness.
20. Turn the ignition switch OFF.
21. Disconnect the driver's seat wire harness 3P connector from the driver's seat belt buckle switch 3P connector (A).
22. Unbuckle the driver's seat belt.
23. Measure the resistance between the No. 3 terminal of the driver's power seat wire harness 3P connector and body ground. There should be 0-1 ohm.
Is the resistance as specified?
YES - Replace the driver's seat belt buckle assembly, then clear the DTC.
NO - Open in the SRS wire harness or poor connection at C701. Check the connection; if the connection is OK, replace the driver's sear wire harness or poor ground connection at G551. If G551 is OK, replace the faulty harness.