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 there are no DTCs set related to the following system/component:
- B17 Barometric Pressure Sensor
- B66 Intake Air Temperature Sensor
- B75C Multifunction Intake Air Sensor
- Q17 Fuel Injector
- Q67 Exhaust Aftertreatment Fuel Injector
- If a related DTC is set
- Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If a related DTC is not set
- 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 DTC P200C is not set.
- If DTC P200C is set
Refer to: Circuit/System Testing
- Go to next step: If DTC P200C is not set
- If DTC P200C is set
- All OK.