Circuit/System Verification
WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify DTC P0697 or P06A3 is not set.
- If any of the DTCs are set
Refer to DTC P0641, P0651, P0697 or P06A3 (ECM) for further diagnosis.
- Go to next step: If none of the DTCs are set
- If any of the DTCs are set
- Verify the APP Sensor 1 Circuit Status and APP Sensor 2 Circuit Status displays OK.
- If OK is not displayed
Refer to Circuit/System Testing below.
- Go to next step: If OK is displayed
- If OK is not displayed
- Verify the scan tool APP Sensor 1 and 2 Agree/Disagree parameter displays Agree while performing the tests listed below:
- Rapidly depress the accelerator pedal from the rest position to the wide open throttle position (WOT) and release pedal. Repeat the procedure several times.
- Slowly depress the accelerator pedal to WOT and then slowly return the pedal to closed throttle. Repeat the procedure several times.
- If Agree is not displayed
Refer to Circuit/System Testing below.
- Go to next step: If Agree is displayed
- Verify that DTC P2122, P2123, P2127, P2128 or P2138 is not set.
- If any of the DTCs are set
Refer to Circuit/System Testing below.
- Go to next step: If none of the DTCs set
- If any of the DTCs are 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 the DTC does not set.
- If the DTC sets
Refer to Circuit/System Testing below
- Go to next step: If the DTC does not set
- If the DTC sets
- All OK.