DTC Troubleshooting: 33-9x

DTC 33-9x (33-90 to 33-99, 33-9A to 33-9F):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 33-9x indicated?


YES - Go to 3.


NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC troubleshooting index for troubleshooting details.


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

4.Disconnect the left side curtain airbag 2P connector from the side curtain airbag subharness (A).

5.Connect the SRS inflator simulator (2 W connector) and the simulator lead to the side curtain airbag subharness.

6.Reconnect the battery negative cable.

7.Erase the DTC memory.

8.Read the DTC.

Is DTC 33-9x indicated?


YES - Go to 9.


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


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

10.Disconnect SRS unit connector C (16P) from the SRS unit.

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

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

Is the resistance as specified?


YES - Faulty  SRS unit; replace the SRS unit.n


NO - Short to ground in the side curtain airbag subharness; replace the side curtain airbag subharness.n