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 DTC P0697, P06A3 is not set.
- If any of the DTCs are set
  Refer to: DTC P0641, P0651, P0697, or P06A3
- Go to next step: If none of the DTCs are set
Verify the scan tool parameter:
- APP Sensor 1 Circuit Status = OK
- APP Sensor 2 Circuit Status = OK
- If not the specified state
  Refer to: Circuit/System Testing
- Go to next step: If the specified state
Verify the scan tool parameter:
- APP Sensor 1 = 0. 8 to 4. 5 V - The value should not spike or drop out while moving the sensor through the entire range.
- APP Sensor 2 = 0. 4 to 2. 5 V - The value should not spike or drop out while moving the sensor through the entire range.
- If not in the specified range or does not change
  Refer to: Circuit/System Testing
- Go to next step: If in the specified range and changes
Verify the scan tool parameter: APP Sensor 1 and 2 = Agree
- If not the specified state
  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 does not set
All OK.