DTC 62-1x ("x" can be 0 thru 9 or A thru F): Open in the Front Passenger's Seat Belt Buckle Switch

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 ), General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES) ), and 12 Volt Battery Terminal Disconnection and Reconnection (see 12 VOLT BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).
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 DTCs with the HDS (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 front passenger's seat belt several times.
Check for DTCs with the HDS (see HOW TO CLEAR DTCS ).
Is DTC 62-1x indicated?

YES -Go to step 5.

NO -Intermittent failure, the system is OK at this time. Go to 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. 4 and body ground.

Fig 1: Installing Jumper Wire Between SRS Unit Connector B (39P) Terminal No. 4 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see HOW TO CLEAR DTCS ).
Is DTC 62-2x indicated?

YES -Go to step 9.

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 front passenger's seat belt buckle switch 2P connector (A) on the floor wire harness.

Fig 2: Identifying Front Passenger's Seat Belt Buckle Switch 2P Connector Of Floor Wire Harness
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II).
Measure the voltage between the body ground and front passenger's seat belt buckle switch 2P connector terminal No. 1 on the floor wire harness.

Fig 3: Measuring Voltage Between Body Ground And Front Passenger's Seat Belt Buckle Switch 2P Connector Terminal No. 1 On Floor Wire Harness
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there more than 10 V?

YES -Go to step 14.

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 body ground and front passenger's seat belt buckle switch 2P connector terminal No. 2 on the floor wire harness.

Fig 4: Measuring Resistance Between Body Ground And Front Passenger's Seat Belt Buckle Switch 2P Connector Terminal No. 2 On Floor Wire Harness
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there less than 1.0 Ω?

YES -Faulty front passenger's seat belt buckle switch; replace the front passenger's seat belt buckle assembly (see SEAT BELT BUCKLES ), then clear the DTC.

NO -Open in the floor wire harness; check for a poor ground at G601. If the ground is OK, replace the floor wire harness, then clear the DTC.