DTC 12-1x

DTC 12-1x ("x" can be 0, 2 thru 9 or A thru F): Open in the Front Passenger's Airbag First Inflator

DTC 12-4x ("x" can be 0, 2 thru 9 or A thru F): Open in the Front Passenger's Airbag Second Inflator

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead J 070AZ-SNAA100

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 12-1x or 12-4x 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 front passenger's airbag 4P connector (A) from the dashboard wire harness.






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

Is DTC 12-1x or 12-4x indicated?

YES - Go to step 9.

NO - Open in the front passenger's airbag first or second inflator; replace the front passenger's 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 A (39P) from the SRS unit.
11. Disconnect the SRS inflator simulator from the SRS simulator lead. Do not disconnect the simulator lead from the dashboard wire harness 4P connector.
12. Measure the resistance between the terminals of both SRS simulator leads. There should be 1 ohms or less.






Is the resistance as specified?

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

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