DTC 1-2
DTC 1-2: Increased resistance in driver's airbag inflator1. 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.
3. Disconnect the battery negative cable, and wait for 3 minutes.
4. Disconnect the driver's airbag 2P connector from the cable reel 2P connector (A).
5. Connect the special tool (2 Ohm) to the cable reel connector.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC.
Is DTC 1-1 or DTC 1-2 indicated?
YES - Go to step 9.
NO - Open or increased resistance in the driver's airbag inflator; replace the driver's airbag.
9. Turn the ignition switch OFF. Disconnect the battery negative cable, and wait 3 minutes.
10. Disconnect the cable reel 2P connector from the SRS main harness 2P connector (A).
11. Connect the special tool (2 Ohm) to the SRS main harness 2P connector.
12. Reconnect the battery negative cable.
13. Erase the DTC memory.
14. Read the DTC.
Is DTC 1-1 or DTC 1-2 indicated?
YES - Go to step 15.
NO - Open or increased resistance in the cable reel; replace the cable reel.
15. Disconnect the battery negative cable, and wait for 3 minutes.
16. Disconnect the front passenger's airbag 4P connector (A).
17. Disconnect the SRS main harness 18P connector (A) from the SRS unit (B).
18. Check resistance between the No. 7 terminal and the No. 16terminal of the SRS main harness 18P connector. There should be 2.0 - 3.0 Ohm
Is the resistance as specified?
YES - Faulty SRS unit or poor contact at the SRS main harness 18P connector and the SRS unit, check the connection between the SRS main harness 18P connector and the SRS unit. If the connection is OK, replace the SRS unit.
NO - Open or increased resistance in the SRS main harness; replace the SRS main harness.