61-2x

SRS DTC Troubleshooting: 61-2x (x can be 0 thru 9 or A thru F)

DTC 61-2x ("x" can be 0 thru 9 or A thru F): Short in the Driver's Seat Belt Buckle Switch

NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures, Service and Repair General Troubleshooting Information, Reading and Clearing Diagnostic Trouble Codes and Battery Terminal Disconnection and Reconnection. Procedures

1. Clear the DTC memory. Reading and Clearing Diagnostic Trouble Codes

2. Turn the ignition switch to ON (II), then buckle and unbuckle the left side seat belt several times.

3. Read the DTC. Reading and Clearing Diagnostic Trouble Codes

Is DTC 61-2x indicated?
YES - Go to step 4.

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Reading and Clearing Diagnostic Trouble Codes If another DTC is indicated, troubleshoot the DTC.


4. Check the No. 21 (10 A) fuse in the driver's under-dash fuse/relay box.

Is the fuse OK?
YES - Go to step 5.

NO - Short to ground in the driver's under-dash fuse/relay box No. 21 (10 A) fuse circuit. After No. 21 (10 A) fuse is replaced, then clear the DTC.


5. Turn the ignition switch to LOCK (0).

6. Disconnect the driver's seat wire harness 4P connector from the driver's seat belt buckle switch 4P connector (A).






7. Buckle the driver's seat belt.
- Measure the resistance between driver's seat belt buckle switch 4P connector terminals No. 1 and No. 3. There should be less than 1.0 Ohms.

- Measure the resistance between terminals No. 2 and No. 3 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, Front Seat Belt Replacement then clear the DTC.






8. Unbuckle the driver's seat belt.
- Measure the resistance between driver's seat belt buckle switch 4P connector terminals No. 2 and No. 3. There should be less than 1.0 Ohms.

- Measure the resistance between terminals No. 1 and No. 3 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, Front Seat Belt Replacement then clear the DTC.






9. Measure the resistance between driver's seat belt buckle switch 4P connector terminal No. 1 and body ground, and between terminal No. 2 and body ground. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?
YES - Go to step 10.

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






10. Disconnect the negative cable from the battery, then wait at least 3 minutes.

11. Disconnect SRS unit connector B (28P) from the SRS unit. Service and Repair

12. Measure the resistance between driver's seat wire harness 4P connector terminal No. 2 and body ground. There should be an open circuit or at least 1 MOhms.
NOTE: Some resistance will be read by some meters since the MICU also monitors the seat belt buckle switch.

Is the resistance as specified?
YES - Go to step 13.

NO - Short to ground in the driver's seat wire harness, the left side wire harness, or the MICU. Replace the faulty harness or part, then clear the DTC.






13. Disconnect the driver's seat belt tension reducer solenoid 2P connector. Testing and Inspection Measure the resistance between driver's seat wire harness 4P connector terminal No. 1 and body ground. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?
YES - Faulty SRS unit; replace the SRS unit. SRS Unit Replacement

NO - Short to ground in the driver's seat wire harness or the left side wire harness; replace the faulty harness, then clear the DTC.