61-1x

SRS DTC Troubleshooting: 61-1x

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.

2. Turn the ignition switch to ON (II), then wait for 10 seconds. Buckle and un-buckle the driver's seat belt several times.

3. Read the DTC.

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. If another DTC is indicated, troubleshoot the DTC.�

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

5. From the system selection menu on the HDS, select SRS, then select SRS again, then select PARAMETER INFORMATION, then Buckle Switch, Seat Position Sensor, and check the status on the HDS screen for FRONT LEFT SEAT BELT BUCKLE SWITCH.

Is OPEN indicated?

YES -

- If OPEN is indicated only when the driver's seat belt is buckled, go to step 6.
- If OPEN is indicated only when the driver's seat belt is un-buckled, go to step 14.
- If OPEN is indicated only when the driver's seat belt is buckled and un-buckled, go to step 22.

NO -

Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.�

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

7. Disconnect the floor wire harness 3P connector (A) from the driver's seat belt buckle switch 3P connector (B).





8. Buckle the driver's seat belt.

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





Is the resistance as specified?

YES -

Go to step 10.

NO -

Faulty driver's seat belt buckle switch; 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 both front seat belt tensioner 4P connectors.

12. Disconnect SRS unit connector B (28P) from the SRS unit.

13. Measure the resistance between SRS unit connector B (28P) terminal No. 12 and floor wire harness 3P connector terminal No. 3. There should be less than 1.0 Ohms.





Is the resistance as specified?

YES -

Faulty SRS unit or poor connection at SRS unit connector B (28P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit SRS Unit Replacement. If the DTC does not clear, replace the harness.�

NO -

Open in the floor wire harness; replace the floor wire harness, then clear the DTC.�

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

15. Disconnect the floor wire harness 3P connector (A) from the driver's seat belt buckle switch 3P connector (B).





16. Un-buckle the driver's seat belt.

17. Measure the resistance between driver's seat belt buckle switch 3P connector terminals No. 1 and No. 2. There should be less than 1.0 Ohms.





Is the resistance as specified?

YES -

Go to step 18.

NO -

Faulty driver's seat belt buckle switch; replace the driver's seat belt buckle assembly Front Seat Belt Replacement, then clear the DTC.�

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

19. Disconnect both front seat belt tensioner 4P connectors.

20. Disconnect SRS unit connector B (28P) from the SRS unit.

21. Measure the resistance between SRS unit connector B (28P) terminal No. 11 and floor wire harness 3P connector terminal No. 2. There should be less than 1.0 Ohms.





Is the resistance as specified?

YES -

Faulty SRS unit or poor connection at SRS unit connector B (28P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit SRS Unit Replacement. If the DTC does not clear, replace the harness.�

NO -

Open in the floor wire harness or ECM/PCM wire harness; replace the faulty harness, then clear the DTC.�

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

23. Disconnect the floor wire harness 3P connector (A) from the driver's seat belt buckle switch 3P connector (B).





24. Un-buckle the driver's seat belt.

25. Measure the resistance between floor wire harness 3P connector terminal No. 1 and body ground. There should be less than 1.0 Ohms.





Is the resistance as specified?

YES -

Faulty driver's seat belt buckle switch; replace the driver's seat belt buckle assembly Front Seat Belt Replacement, then clear the DTC.�

NO -

Open in the floor wire harness or poor ground connection at G552. If G552 is OK, replace the floor wire harness, then clear the DTC.�