DTC 62-1x
DTC 62-1x (62-10 to 62-19, 62-1A to 62-1F): Open in Front Passenger's Seat Belt Buckle Switch1. Erase the DTC memory.
2. Turn the ignition switch ON (II), then buckle and unbuckle the front passenger's seat belt several times.
3. Read the DTC,
Is DTC 62-1x 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 front passenger's seat belt buckle switch 3P connector (A) from the front passenger's seat wire harness.
6. Buckle the front passenger's seat belt.
Check 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
Check resistance between the No. 1 and No. 2 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 front passenger's seat belt buckle assembly, then erase the DTC.
7. Unbuckle the front passenger's seat belt.
Check 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.
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 front passenger's seat belt buckle assembly, then erase the DTC.
8. Check resistance between the No. 1 terminal of the front passenger'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 front passenger's seat wire harness or floor wire harness, or poor ground connection at G602. If G602 is OK, replace the faulty harness.
9. Disconnect the battery negative cable, and wait for 3 minutes.
10. Disconnect both seat belt tensioner 4P connectors from the floor wire harness.
11. Disconnect SRS unit connector B (28P) from the SRS unit.
12. Check resistance between the No. 18 terminal of SRS unit connector B (28P) and the No. 3 terminal of the front passenger'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 front passenger's seat wire harness or floor wire harness; replace the faulty harness.
13. Check resistance between the No. 12 terminal of SRS unit connector B (28P) and the No. 2 terminal of the front passenger'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 front passenger's seat wire harness or floor wire harness; replace the faulty harness.