Circuit/System Verification

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

If DTC P0747 is present, the vehicle could have forward propulsion while in neutral. Failure to keep the brake pedal depressed while shifting through the gear ranges may cause the vehicle to move forward resulting in potential vehicle damage and possibly injury or death.

Verify the condition does not exist: Incorrect fluid level or condition - Refer to: Transmission Fluid Level and Condition Check
- If a condition exists
  Repair or replace as necessary.
- Go to next step: If no condition exists
Ignition - On / Vehicle - In Service Mode
Clear DTCs
Road test the vehicle. - Refer to: Road Test
Verify DTC P0716, P0717, P0721, P0722, P0723, P0746, P0747, P07BF, P077C, P077D, P07C0, P176B, P176C, P176D, P17D3 is not set.
- If DTC P0716, P0717, P0721, P0722, P0723, P07BF, P077C, P077D, P07C0, P176B, P176C, P176D, P17D3 is set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- If DTC P0746, P0747 is set
  Refer to: Diagnostic Fault Information
- Go to next step: If none 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 DTC P0716, P0717, P0721, P0722, P0723, P0746, P0747, P07BF, P077C, P077D, P07C0, P176B, P176C, P176D, P17D3 is not set.
- If DTC P0716, P0717, P0721, P0722, P0723, P07BF, P077C, P077D, P07C0, P176B, P176C, P176D, P17D3 is set
  Refer to: Diagnostic Trouble Code (DTC) List - Vehicle
- If DTC P0746, P0747 is set
  Refer to: Diagnostic Fault Information
- Go to next step: If none of the DTCs are set
All OK.