Circuit/System Verification

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the following for leaks, kinks, or other restrictions:
- A7 Fuel Pump and Level Sensor Assembly - Damaged O-ring.
- Evaporative Emission Canister
- Evaporative Emission Canister Vent Hose
- Evaporative Emission Pipe
  - If a condition exists - Repair or replace as necessary
  - Go to next step: If no condition exists
Perform the following action:
- Cap Type Fuel Fill - Remove the fuel fill cap.
- Capless Type Fuel Fill - Install - GE-41415-60 Engine Induction System Leak Test Adapter/Capless Fuel Fill Adapter
Ignition - On / Vehicle - In Service Mode
Verify the scan tool parameter:Fuel Tank Pressure Sensor = Between:1.3 to 1.7 V
- If not between 1.3 and 1.7 V
  Refer to: Circuit/System Testing
- Go to next step: If between 1.3 and 1.7 V
Ignition - On / Vehicle - In Service Mode
Verify the scan tool parameter:Fuel Tank Pressure Sensor = The parameter value should not change.
Perform the action while monitoring the parameter:
- Wiggle the harness and connector:B150 Fuel Tank Pressure Sensor
- Wiggle the harness and connector:X1 @ K111 Fuel Pump Driver Control Module
  - If the parameter value changes
    Repair as necessary - Wiring / Terminal(s) / Electrical Connector(s)
  - Go to next step: If the parameter value does not change
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
All OK.