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 DTCs with HDS Reading and Clearing Diagnostic Trouble Codes.
2. Turn the ignition switch to ON (II), then buckle and unbuckle the driver's seat belt several times.
3. Check for DTCs with the HDS 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. From the HDS Main Menu, select SRS, then PARAMETER INFORMATION. In the PARAMETER INFORMATION Menu, select Buckle Switch, Seat Position Sensor and check the status on the HDS screen for FRONT LEFT SEAT BELT BUCKLE SWITCH.
- If UNBUCKLED is indicated only when the driver's seat belt is unbuckled, go to step 5.
- If BUCKLED is indicated only when the driver's seat belt is buckled, go to step 11.
- If OPEN is indicated only when the driver's seat belt is buckled and unbuckled, go to step 18.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the driver's seat wire harness or floor wire harness 3P connector from the driver's seat belt buckle switch 3P connector (A).
7. Buckle the driver's seat belt. Measure the resistance between driver's seat belt buckle switch 3P connector terminal No. 1 and No. 3. There should be less than 1.0 Ohms.
Is the resistance as specified?
YES -
Go to step 8.
NO -
Faulty driver's seat belt buckle switch, replace the driver's seat belt buckle assembly Front Seat Belt Replacement, then clear the DTC.�
8. Disconnect the negative cable from the battery, then wait for 3 minutes.
9. Disconnect SRS unit connector B (28P) from the SRS unit Service and Repair.
10. Measure the resistance between SRS unit connector B (28P) terminal No. 12 and driver's seat wire harness or 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.
NO -
Open in the floor wire harness, driver's seat wire harness, or poor connection at C552 ('08-11 models with seat heater) Check the connection; if the connection is OK, replace the faulty harness, then clear the DTC.�
11. Turn the ignition switch to LOCK (0).
12. Disconnect the driver's seat wire harness or floor wire harness 3P connector from the driver's seat belt buckle switch 3P connector (A).
13. Unbuckle the driver's seat belt.
14. 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 15.
NO -
Faulty driver's seat belt buckle switch, replace the driver's seat belt buckle assembly Front Seat Belt Replacement, then clear the DTC.�
15. Disconnect the negative cable from the battery, then wait for 3 minutes.
16. Disconnect SRS unit connector B (28P) from the SRS unit Service and Repair.
17. Measure the resistance between SRS unit connector B (28P) terminal No. 11 and driver's seat wire harness or 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.�
NO -
Open in the floor wire harness or driver's seat wire harness, or poor connection at C552 ('08-11 models with seat heater) Check the connection; if the connection is OK, replace the faulty harness, then clear the DTC.�
18. Turn the ignition switch to LOCK (0).
19. Disconnect the driver's seat wire harness or floor wire harness 3P connector from the driver's seat belt buckle switch 3P connector (A).
20. Unbuckle the driver's seat belt.
21. Measure the resistance between driver's seat wire harness or 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 driver's seat wire harness at C552 ('08-11 models with seat heater) and poor ground connection at G551. C552 ('08-11 models with seat heater) and G501 connection is OK, replace the faulty harness, then clear the DTC.�