DTC 33-91

DTC 33-91: Short to Ground in Left Side Curtain 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, and is DTC 33-91 indicated?

YES - Go to step 3.

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

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




4. Disconnect the left side wire harness 2P connector (A) from the left side curtain airbag (B).
5. Connect the SRS inflator simulator (2 ohms connectors) and simulator lead E to the left side wire harness.
6. Reconnect the negative cable to the battery.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 33-91 indicated?

YES - Go to step 9.

NO - Short to ground in the left side curtain airbag inflator; replace the left side curtain airbag.

9. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
10. Disconnect the SRS unit connector C (28P) from the SRS unit.
11. Disconnect the SRS inflator simulator from the SRS simulator lead.




12. Check resistance between each terminal of the SRS simulator lead and body ground. There should be an open circuit or at least 1 Mohm.

Is the resistance as specified?

YES - Faulty SRS unit; replace the SRS unit.

NO - Go to step 13.




13. Disconnect right side wire harness 16P connector C655 (A) from left side wire harness connector C655 (B).




14. Check resistance between the No. 6 terminal of right side wire harness 16P connector C655 and body ground, and between the No. 8 terminal and body ground. There should be an open circuit or at least 1 Mohm.

Is the resistance as specified?

YES - Short to ground in the left side wire harness; replace the left side wire harness.

NO - Short to ground in the right side wire harness; replace the right side wire harness.