DTC 2-4

DTC 2-4: Short to power in passenger's airbag inflator

1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator light comes on for about 6 seconds and then goes off.

Does the SRS indicator light stay on?

YES - Go to step 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 front passenger's airbag 4P connector from the SRS main harness 4P connector (A).
5. Connect the special tool (2 Ohm connectors) to the SRS main harness 2P connector.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.

8. Read the DTC. Is DTC 2-4 indicated?

YES - Go to step 9.

NO - Short to power in the front passenger's airbag inflator; replace the front passenger's airbag.

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




10. Disconnect the driver's airbag 4P connector (A) from the cable reel 4P connector (B), and disconnect the special tool from the SRS main harness 4P connector.




11. Disconnect both seat belt tensioner 2P connectors (A) from the side wire harness 2P connectors (B).




12. Disconnect SRS unit connector A (18P) from the SRS unit.
13. Reconnect the battery negative cable.
14. Turn the ignition switch ON (II).




15. Check for voltage between the No.6 terminal of SRS unit connector A (18P) and body ground, between the No.15 terminal and body ground, between the No.5 terminal and body ground, and between the No.14 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.

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