DTC 61-1x
DTC 61-1x (61-10 to 61-19, 61-1A to 61-1F): Open in Driver's Seat Belt Buckle Switch1. Erase 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, 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
4. Turn the ignition switch OFF.
5. Disconnect the driver's seat wire harness 3P connector from the driver's seat belt buckle switch 3P connector (A).
6. 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
Check resistance between the No. 2 and No. 3 terminals of the same connector. There should be an open circuit or at least 1 MOhms.
Are the resistances as specified?
YES- Go to step 7.
NO - Replace the driver's seat belt buckle assembly then erase the DTC.
7. Unbuckle the driver's seat belt.
Check 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.
Check resistance between the No. 1 and No. 3 terminals of the same connector. There should be an open circuit or at least 1 MOhms.
Are the resistances as specified?
YES - Go to step 8.
NO - Replace the driver's seat belt buckle assembly then erase the DTC.
8. Check resistance between the No. 3 terminal of the driver's seat wire harness 3P connector and body ground. There should be 0-1 Ohm.
Is the resistance as specified?
YES - Go to step 9.
NO - Open in the driver's seat wire harness or floor wire harness, or poor ground connection at G601. If G601 is OK, replace the faulty harness.
9. Disconnect the battery negative cable, and wait for 3 minutes.
10. Disconnect both seat belt tensioner4P connectors from the floor wire harness.
11. Disconnect SRS unit connector B (28P) from the SRS unit.
12. Check resistance between the No. 17 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 - Go to step 13.
NO - Open in the driver's seat wire harness or floor wire harness; replace the faulty harness.
13. Check 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; replace the SRS unit.
NO - Open in the driver's seat wire harness, floor wire harness, or the under-dash fuse/relay box, or poor connection at the floor wire harness. Check the connection at the floor wire harness and the under-dash fuse/relay box. If the connection is OK, replace the faulty harness or part.