DTC 1-4
DTC 1-4: Short to power in driver's airbag inflator1. Erase the DTC memory.
2. Turn the ignition switch ON (II), and check that the SRS indicator light comes on for about six 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. Disconnect the battery negative cable, and wait for three minutes.
4. Disconnect the driver's airbag 2P connector from the cable reel 2P connector (A).
5. Connect the special tool (2 ohms) to the cable reel 2P connector.
6. Reconnect the battery negative cable.
7. Erase the DTC memory.
8. Read the DTC .
Is DTC 1-4 indicated?
YES - Go to step 9.
NO - Short to power in the driver's airbag; replace the driver's airbag.
9. Turn the ignition switch OFF. Disconnect the battery negative cable, and wait three minutes.
10. Disconnect the cable reel 2P connector from the SRS main harness 2P connector (A).
11. Connect the special tool (2 ohms) to the SRS main harness 2P connector.
12. Reconnect the battery negative cable.
13. Erase the DTC memory.
14. Read the DTC.
Is DTC 1-4 indicated?
YES - Go to step 15.
NO - Short to power in the cable reel; replace the cable reel.
15. Disconnect the battery negative cable, and wait for three minutes.
16. Disconnect the front passenger's airbag 4P connector (A) from the SRS main harness 4P connector (B), and disconnect the special tool (2 ohm) from the SRS main harness 2P connector.
17. Disconnect the SRS main harness 18P connector (A) from the SRS unit (B).
18. Reconnect the battery negative cable.
19. Turn the ignition switch ON (II).
SRS Main Harness 18P Connector (Wire Side Of Female Terminals):
20. Check for voltage between the No.7 terminal of the SRS main harness 18P connector and body ground. There should be 0.5 V or less. Check for voltage between the No.16 terminal of the SRS main harness 18P connector 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.