DTC 31-8x

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

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead E 07XAZ-SlA0200

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 31-8x 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. DTC List - Supplemental Restraint System

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




4. Disconnect the SRS harness 2P connector (A) from the driver's side airbag (B).
5. Connect the SRS inflator simulator (2 ohm connector) and simulator lead E to the SRS harness.
6. Reconnect the negative cable to the battery.
7. Erase the DTC memory.
8. Check for a 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 OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
10. Disconnect SRS unit connector C (28P) from the SRS unit.
11. Reconnect the negative cable to the battery.
12. Disconnect the SRS inflator simulator from the SRS simulator lead. Do not disconnect the simulator lead from the SRS harness 2P connector.
13. Turn the ignition switch ON (II).




14. Check for voltage between each terminal of the SRS simulator lead and body ground. There should be less than 0.5 V.

Is the voltage as specified?

YES - Faulty SRS unit replace the SRS unit.

NO - Go to step 15.

15. Turn the ignition switch OFF.




16. Disconnect SRS harness 28P connector C854 (A) from SRS subharness connector C854 (B).
17. Turn the ignition switch ON (II).




18. Check for voltage between the No. 21 terminal of SRS subharness 28P connector C854 and body ground, and between the No. 22 terminal and body ground. There should be less than 0.5 V.

Is the voltage as specified?

YES - Short to power in the SRS harness replace the SRS harness.

NO - Short to power in the SRS subharness replace the SRS subharness.