On-Demand Self-Test

The on-demand self-test option is used to verify that no electrical concerns exist with the air bag SRS. Upon entering the self-test, the restraints control module (RCM) makes an electrical check of each electrical component in the system. When entering the self-test for the occupant classification sensor (OCS) module, and electrical check is made of the OCS system components and circuits as well as functional checks of the OCS system. If a concern is detected, a DTC is displayed on the IDS or equivalent tester with a brief description of the DTC. Concerns detected during the self-test are not stored in memory, unless the same concern was also detected during normal vehicle operation. Run the self-test after any repair to verify that the repair was successful.

To run the on-demand self-test, follow these steps:

1. Connect the IDS or equivalent tester to the data link connector (DLC).
2. Turn the ignition switch to the ON position.
3. Follow manufacturer's instructions for the IDS or equivalent tester being used.
4. Select either the RCM or OCS module.
5. The module will run the on-demand self-test and display on-demand DTCs (reflecting hard system concerns) on the screen.