Circuit/System Verification
WARNING: This page is about a different car, the 2006 Saturn Ion 3. However, it is still accessible from the selected car via links, so may be relevant.
Observe the DTC Information with a scan tool.
- If the scan tool displays that any other DTCs also failed this ignition, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If only DTC P0016 is displayed, continue with Circuit/System Testing.