Circuit/System Verification
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition - On / Vehicle - In Service Mode
- Verify the scan tool parameter: Water in Fuel = No
- If not the specified state
- Verify the condition does not exist: Water @ Fuel Filter Water Bleed Screw
Refer to: Water-in-Fuel Draining
- If a condition exists - Refer to: Contaminants-in-Fuel Diagnosis
- If no condition exists - Refer to: Circuit/System Testing
- Go to next step: If the specified state
- Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify the DTC does not set.
- If the DTC sets
Refer to: Circuit/System Testing
- Go to next step: If the DTC is not set
- If the DTC sets
- All OK.