61-1x

SRS DTC Troubleshooting: 61-1x (x can be 0 thru 9 or A thru F)

DTC 61-1x ("x" can be 0 thru 9 or A thru F): Open 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 61-1x 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. Turn the ignition switch to LOCK (0).

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






6. 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 then 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 7.

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






7. 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 8.

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






8. Measure the resistance between driver's seat wire harness 4P connector terminal No. 3 and body ground. There should be less than 1.0 Ohms.

Is the resistance as specified?
YES - Go to step 9.

NO - Open in the driver's seat wire harness or left side wire harness, or poor ground connection at G601. Left Side Wire Harness (Front Branch) Connector and Harness Locations If G601 is OK, replace the faulty harness, then clear the DTC.






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

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

11. Measure the resistance between SRS unit connector B (28P) terminal No. 12 and the driver's seat wire harness 4P connector terminal No. 1. There should be less than 1.0 Ohms.

Is the resistance as specified?
YES - Go to step 12.

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






12. Measure the resistance between SRS unit connector B (28P) terminal No. 11 and the driver's seat wire harness 4P connector terminal No. 2. There should be less than 1.0 Ohms.

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

NO - Open in the driver's seat wire harness, left side wire harness, or the driver's under-dash fuse/relay box, or poor connection at the left side wire harness. Check the connection at the left side wire harness and the driver's under-dash fuse/relay box. If the connection is OK, replace the faulty harness or part, then clear the DTC.