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 Reading and Clearing Diagnostic Trouble Codes.
2. Turn the ignition switch to ON (II), then buckle and un-buckle the driver's 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, 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 (with driver's 8-way power seat) or floor wire harness (with driver's manual height adjustable seat) 3P connector from the driver's seat belt buckle switch 3P connector (A).
6. Buckle the driver's seat belt.
- 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.
- Measure the resistance between driver's seat belt buckle switch 3P connector terminals No. 1 and No. 2. 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. Un-buckle the driver's seat belt.
- 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.
- Measure the resistance between driver's seat belt buckle switch 3P connector terminals No. 1 and No. 3. 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 (with driver's 8-way power seat) or floor wire harness (with driver's manual height adjustable seat) 3P connector terminal No. 1 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 (with driver's 8-way power seat) or floor wire harness, or poor ground connection at G602. If G602 is OK, replace the faulty harness, than clear the DTC.�
9. Disconnect the negative cable from the battery.
10. Disconnect both seat belt tensioner 4P connectors Service and Repair.
11. Disconnect SRS unit connector B (28P) from the SRS unit Service and Repair.
12. Measure the resistance between SRS unit connector B (28P) terminal No. 12 and driver's seat wire harness (with driver's 8-way power seat) or floor wire harness (with driver's manual height adjustable seat) 3P connector terminal No. 3. There should be less than 1.0 Ohms.
Is the resistance as specified?
YES -
Go to step 13.
NO -
Open in the driver's seat wire harness (with driver's 8-way power seat) or floor wire harness; replace the faulty harness, than clear the DTC.�
13. Measure the resistance between SRS unit connector B (28P) terminal No. 11 and driver's seat wire harness (with driver's 8-way power seat) or floor wire harness (with driver's manual height adjustable seat) 3P 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 (with driver's 8-way power seat) or floor wire harness, or poor connection at the floor wire harness. Check the connections at the floor wire harness, connector F (14P), and connector H (14P) at the driver's under-dash fuse/relay box Passenger's Under-dash Fuse/Relay Box Connector Locations. If the connections are OK, replace the faulty harness or part, then clear the DTC.�