Test Procedure
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- Install a scan tool.
- With a scan tool, select the service bay test in the special functions menu.
- Follow the instructions on the scan tool.
- Check DTCs with a scan tool.
- Continue with the published service manual diagnostic DTC procedure.