DTC 31-1x ("x" can be 0 thru 9 or A thru F): Open in Driver's Side Airbag Inflator

Special Tools Required

SRS inflator simulator 07SAZ-TB4011A
SRS simulator lead E 07XAZ-S1A0200

NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures (see PRECAUTIONS AND PROCEDURES ) and General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES) ).

Clear the DTC memory (see CLEAR THE DTC MEMORY WITH THE HDS ).
Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.
Does the SRS indicator stay on, and is DTC 31-1x indicated?

YES -Go to step 3.

NO -Intermittent failure, system is OK at this time. Go to TROUBLESHOOTING INTERMITTENT FAILURES . If another DTC is indicated, troubleshoot the DTC.
Turn the ignition switch OFF. Disconnect the negative cable from the battery, then wait for 3 minutes.
Disconnect the floor wire harness 2P connector (A) from the driver's side airbag.

Fig 1: Identifying Floor Wire Harness 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Connect the SRS inflator simulator (2 Ω connector) and simulator lead E to the floor wire harness.
Reconnect the negative cable to the battery.
Clear the DTC memory.
Read the DTC (see DTC (DIAGNOSTIC TROUBLE CODES) ).
Is DTC 31-1x indicated?

YES -Go to step 9.

NO -Open in the driver's side airbag inflator; replace the driver's side airbag (see SIDE AIRBAG REPLACEMENT ).
Turn the ignition switch OFF. Disconnect the negative cable from the battery, then wait for 3 minutes.
Disconnect both seat belt tensioner 4P connectors (see step 6 ).
Disconnect SRS unit connector B (28P) from the SRS unit (see step 7 ).
Disconnect the SRS inflator simulator from the SRS simulator lead. Do not disconnect the simulator lead from the floor wire harness 2P connector.
Measure the resistance between the terminals of the SRS simulator lead. There should be 1.0 Ω or less.

Fig 2: Measuring Resistance Between Terminals Of SRS Simulator Lead
Courtesy of AMERICAN HONDA MOTOR CO., INC.

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; if the connection is OK, replace the SRS unit (see SRS UNIT REPLACEMENT ).

NO -Open in the floor wire harness; replace the floor wire harness.