DTC 31-8x

DTC 31-8x ("x" can be 0 thru 9 or A thru F): Short to Power in the Driver's Side Airbag Inflator

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead L 070AZ-SNAA300

NOTE:
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information.
- 2-door: 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 and retest.

1. Clear the DTC memory.
2. Turn the ignition switch to 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 31-8x indicated?

YES - Go to step 3.

NO - Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. Troubleshooting Intermittent Failures If another DTC is indicated, troubleshoot the DTC.

3. Turn the ignition switch to LOCK (0). Do the battery terminal disconnection procedure, then wait for 3 minutes.
4. Disconnect the SRS floor wire harness 2P connector (A) from the driver's side airbag (B).






5. Connect the SRS inflator simulator (2 ohms connectors) and simulator lead L to the SRS floor wire harness.
6. Do the battery terminal reconnection procedure.
7. Clear the DTC memory.
8. Read the DTC.

Is DTC 31-8x indicated?

YES - Go to step 9.

NO - Short to power in the driver's side airbag inflator; replace the driver's side airbag.

9. Turn the ignition switch to LOCK (0). Do the battery terminal disconnection procedure, then wait for 3 minutes.
10. Disconnect SRS unit connector B (39P) from the SRS unit.
11. Disconnect the SRS inflator simulator from the SRS simulator lead. Do not disconnect the simulator lead from the SRS floor wire harness 2P connector.
12. Do the battery terminal reconnection procedure.
13. Turn the ignition switch to ON (II).
14. Measure the voltage between each terminal of the black SRS simulator lead (A) and body ground. There should be 0.5 V or less.






Is the voltage as specified?

YES - Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit.

NO - Short to power in the SRS floor wire harness; replace the SRS floor wire harness.