Circuit/System Verification
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, open the hood to disable the Auto-Stop function.
- Ignition ON, verify the scan tool hood position parameter displays Open.
- If the hood position does not display Open, refer to DTC P254F .
- Observe the scan tool engine coolant temperature (ECT) sensor parameter while moving the ECT sensor connector and the engine control module (ECM) connector. The ECT sensor parameter should not fluctuate greater than 3°C (5°F) while moving the related harnesses and connectors.
- If the ECT parameter fluctuates while moving the related harnesses and connectors, repair the harness or connection.
- Inspect the engine coolant level. Verify that the cooling system is operating correctly.
- If there is a condition with engine cooling system, refer to Symptoms - Engine Cooling .
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.