DTC 12-1

DTC 12-1: Open or Increased Resistance in Front Passenger's Side Airbag Inflator

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead E 07XAZ-S1A0200

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?

YES - Go to step 3.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, go to the DTC Troubleshooting Index. Diagnostic Trouble Code Descriptions

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




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

Is DTC 12-1 indicated?

YES - Go to step 9.

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

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




10. Disconnect the driver's side airbag 2P connector (A) and both seat belt buckle tensioner 4P connectors (B).




11. Disconnect SRS unit connector B (18P) from the SRS unit. Do not disconnect the simulator lead from the floor wire harness 2P connector.




12. Check resistance between the No. 7 and No. 18 terminals of SRS unit connector B (18P). There should be 2.0 - 3.0 Ohms.

Is the resistance as specified?

YES - Faulty SRS unit or poor connection at SRS unit connector B (18P) 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.