## DTC Troubleshooting: 12-4

DTC 12-4: | Short to Power 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 3. NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures.

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

4. | Disconnect the SPo connector from the SPi connector (A).

5. | Connect the special tool (2 W connector) to the SPi connector (A).

6. | Reconnect the battery negative cable.

7. | Erase the DTC memory.

8. | Read the DTC. Is DTC 12-4 indicated? YES - Go to 9. NO - Short to power in the front passenger's side airbag inflator; replace the front passenger's side airbag.n

9. | Disconnect the battery negative cable, and wait for 3 minutes.

10. | Disconnect the TL1o and TR1o connectors (A) from the TL1i and TR1i connectors (B).

11. | Disconnect the U2o connector (A) from the SRS unit.

12. | Reconnect the battery negative cable.

13. | Turn the ignition switch ON (II).

14. | Disconnect the SRS inflator simulator (special tool) from the SRS simulator lead C.

15. | Check for voltage between the A terminal of the SRS simulator lead C (special tool) and body ground, and between the B terminal and body ground. There should be 0.5 V or less. Is the voltage as specified? YES - Faulty SRS unit; replace the SRS unit.n NO - Replace the floor wire harness.n