DTC 31-1x

DTC 31-1x (31-10 to 31-19, 31-1A to 31-1F):Open or Increased Resistance 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.

1. Erase the DTC memory.
2. 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 Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC Troubleshooting Index Diagnostic Trouble Code Descriptions.

3. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.




4. Disconnect the floor wire harness 2P connector (A) from the driver's side airbag (B).
5. Connect the SRS inflator simulator (2 Ohms connector) and simulator lead E to the floor wire harness.
6. Reconnect the negative cable to the battery.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 31-1x indicated?

YES - Go to step 9.

NO - Open or increased resistance in the driver's side airbag inflator; replace the driver's side airbag.

9. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
10. Disconnect SRS unit connector B (28P) from the SRS unit.
11. Disconnect the SRS inflator simulator from SRS simulator lead. Do not disconnect the simulator lead from the floor wire harness 2P connector.




12. Check resistance between the terminals of the SRS simulator lead. There should be 1.0 Ohm or less.

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.

NO - Open or increased resistance in the floor wire harness; replace the floor wire harness.