DTC 61-1x ("x" can be 0 thru 9 or A thru F): Open in the Driver's Seat Belt Buckle Switch

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed ( see COMPONENT REPLACEMENT/INSPECTION AFTER DEPLOYMENT ).
Before doing this troubleshooting procedure, review SRS Precautions and Procedures (see PRECAUTIONS AND PROCEDURES ) and General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES) ).
Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software (see SRS UNIT UPDATE ), and retest.

Clear the DTC memory (see HOW TO CLEAR DTCS ).
Turn the ignition switch to LOCK(0), then wait for 10 seconds.
Turn the ignition switch to ON (II), then buckle and unbuckle the driver's seat belt several times.
Read the DTC (see HOW TO RETRIEVE DTCS ).
Is DTC 61-1x indicated?

YES -Go to step 5.

NO -Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures (see TROUBLESHOOTING INTERMITTENT FAILURES ). If another DTC is indicated, troubleshoot the DTC.
Turn the ignition switch to LOCK (0).
Install a jumper wire between SRS unit connector B (39P) terminal No. 19 and body ground.

Fig 1: Identifying Jumper Wire Between SRS Unit Connector B (39P) Terminal No. 19 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Read the DTC (see HOW TO RETRIEVE DTCS ).
Is DTC 61-2x indicated?

YES -Go to step 8.

NO -Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit (see SRS UNIT REPLACEMENT ).
Turn the ignition switch to LOCK (0).
Remove the jumper wire.
Disconnect the floor wire harness 2P connector (A) from the driver's seat belt buckle switch.

Fig 2: Identifying Floor Wire Harness 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II), then wait for 10 seconds.
Measure the voltage between floor wire harness 2P connector terminal No. 2 and body ground. There should be more than 10 V.

Fig 3: Measuring Voltage Between Floor Wire Harness 2P Connector Terminal No. 2 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the voltage as specified?

YES -Go to step 13.

NO -Open in the floor wire harness; replace the floor wire harness, then clear the DTC.
Turn the ignition switch to LOCK (0).
Measure the resistance between the floor wire harness 2P connector terminal No. 1 and body ground. There should be less than 1.0 Ω.

Fig 4: Measuring Resistance Between Floor Wire Harness 2P Connector Terminal No. 1 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is resistance as specified?

YES -Faulty driver's seat belt buckle switch; replace the driver's seat belt buckle assembly (see FRONT SEAT BELT BUCKLE ), then clear the DTC.

NO -Open in the floor wire harness; check for a poor ground at G602. If the ground is OK, replace the floor wire harness, then clear the DTC.