33-3x

SRS DTC Troubleshooting: 33-3x (x can be 0 thru 9 or A thru F)

DTC 33-3x ("x" can be 0 thru 9 or A thru F): Short to Another Wire or Decreased Resistance in Left Side Curtain Airbag Inflator

Special Tools Required

- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead E 07XAZ-S1A0200
- SRS simulator lead F 07XAZ-SZ30100
- SRS short canceller 070AZ-SAA0100
NOTE:

- Before doing this troubleshooting procedure, review SRS Precautions and Procedures Service and Repair and General Troubleshooting Information. Initial Inspection and Diagnostic Overview

- Before this troubleshooting, review Battery Terminal Disconnection and Reconnection. Procedures

1. Clear the DTC memory. Initial Inspection and Diagnostic Overview

2. Turn the ignition switch to 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 33-3x indicated?
YES - Go to step 3.

NO - Intermittent failure, the system is OK at this time Go to Troubleshooting Intermittent Failures.. Initial Inspection and Diagnostic Overview If another DTC is indicated, troubleshoot the DTC.


3. Turn the ignition switch to LOCK (0). Disconnect the negative cable from the battery, then wait at least 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 connector) and simulator lead E to the left side wire harness.

6. Reconnect the negative cable to the battery.

7. Clear the DTC memory.






8. Read the DTC. Initial Inspection and Diagnostic Overview

Is DTC 33-3x indicated?
YES - Go to step 9.

NO - Short to another wire in the left side curtain airbag inflator; replace the left side curtain airbag. Side Curtain Airbag Replacement


9. Turn the ignition switch to LOCK (0). Disconnect the negative cable from the battery, then wait at least 3 minutes.

10. Disconnect the SRS unit connector C (28P) from the SRS unit. Service and Repair

11. Disconnect the SRS inflator simulator from the SRS simulator lead.

12. Connect the SRS short canceller (070AZ-SAA0100) to No 7 and No. 8 terminals of SRS unit connector C (28P).. Service and Repair

13. Measure the resistance between the terminals of the SRS simulator lead. There should be an open circuit or at least 1 MOhms.

Is the resistance as specified?
YES - Faulty SRS unit; replace the SRS unit. SRS Unit Replacement

NO - Go to step 14.






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






15. Measure the resistance between the No. 6 and No. 8 terminals of right side wire harness 16P connector C655. There should be an open circuit or at least 1 MOhms.

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.