Test Procedure
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If the Service Bay Test aborts or fails a DTC will NOT be set.
- Ignition OFF, open the hood to disable the Auto-Stop function. Refer to Hybrid Modes of Operation Description .
- Ignition ON, verify the scan tool hood position parameter displays Open.
- If the hood position does not display Open, refer to Diagnostic Trouble Code (DTC) List - Vehicle for DTC P254F.
- Select the Service Bay Test with the scan tool.
- Follow the instructions on the scan tool.
- If the test aborts, correct the condition for running the test and then retest.
- If the test fails, repair the vehicle for the condition indicated by the failure message on the scan tool.
- Verify that the EVAP I/M system status is set to YES.
WARNING:
Refer to Road Test Warning
.