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Supplemental Restraint System Verification Test

WARNING:

To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, Occupant Classification System (OCS), seat belt tensioner, impact sensor or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to follow these instructions may result in accidental airbag deployment.

NOTE:

The following procedure should be performed using a diagnostic scan tool to verify proper SRS operation following the service or replacement of any SRS component. Refer to the appropriate diagnostic procedures.

  1. During the following test, the negative battery cable remains disconnected and isolated, as it was during the SRS component removal and installation procedures until instructed to do otherwise.
  2. Be certain that the diagnostic scan tool contains the latest version of the proper diagnostic software. Connect the scan tool to the 16-way Data Link Connector (DLC). The DLC is located on the driver side lower edge of the instrument panel, near the steering column opening cover and outboard of the steering column.
  3. Transition the status of the ignition switch (Keyless Ignition Node/KIN or Ignition Node Module/IGNM) to ON and exit the vehicle with the scan tool.
  4. Check to be certain that nobody is in the vehicle, then connect the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), connect the IBS connector.
  5. Using the scan tool, read and record the active (current) Diagnostic Trouble Code (DTC) data.
  6. Next, use the scan tool to read and record any stored (historical) DTC data.
  7. If any DTC is found in Step 5  or Step 6  , refer to the appropriate diagnostic information.
  8. Use the scan tool to erase the stored DTC data. If any problems remain, the stored DTC data will not erase. Refer to the appropriate diagnostic information to diagnose any stored DTC that will not erase. If the stored DTC information is successfully erased, go to Step 9  .
  9. Transition the status of the ignition switch to OFF for about 15 seconds, and then back to ON. Observe the airbag indicator in the instrument cluster. It should light from four to six seconds, and then go out. This indicates that the SRS is functioning normally and that the repairs are complete. If the airbag indicator fails to light, or lights and stays ON, there is still an active SRS fault or malfunction. Refer to the appropriate diagnostic information to diagnose the problem.
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