DTC 61-2x

DTC 61-2x (61-20 to 61-29, 61-2A to 61-2F): Short in Driver's Seat Belt Buckle Switch ('06 model)

1. 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 61-2x indicated?

YES - Go to step 4.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic OverviewIf 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 harness 3P connector from the driver's seat belt buckle switch 3P connector (A).




6. Check for continuity between the No. 3 terminal of the driver's seat belt buckle switch 3P connector and body ground, and between the No. 2 terminal and body ground. There should be no continuity.

Is there continuity?

YES - Replace the driver's seat belt buckle assembly.

NO - Go to step 7.




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.

Check resistance between the No. 1 and No. 2 terminals of the same connector. There should be an open circuit or at least 1 MOhm.

Are the resistances as specified?

YES - Go to step 8.

NO - Replace the driver's seat belt buckle assembly, then clear the DTC.




8. Unbuckle the driver's seat belt.

Check resistance between the No. 1 and No. 2 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 9.

NO - Replace the driver's seat belt buckle assembly, then clear the DTC.




9. Check resistance between the No. 1 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 10.

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.
10. Disconnect the negative cable from the battery.
11. Disconnect both seat belt tensioner 4P connectors from the floor wire harness.
12. Disconnect SRS unit connector B (28P) from the SRS unit.




13. Check resistance between the No. 2 terminal of the driver's seat wire harness 3P connector and body ground. There should be an open circuit or at least 1 MOhm.

Is the resistance as specified?

YES - Go to step 14.

NO - Short to ground in the driver's seat wire harness, floor wire harness, or multiplex control unit. Replace the faulty harness or part.




14. Check resistance between the No. 3 terminal of the driver's seat wire harness 3P connector and body ground. There should be an open circuit or at least 1 MOhm.

Is the resistance as specified?

YES - Replace the SRS unit.

NO - Short to ground in the driver's seat wire harness or floor wire harness; replace the faulty harness.