Circuit/System Verification
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition - On/Vehicle - In Service Mode
- Perform the scan tool control function: Transmission Control Solenoid Valve 3 - On and Off
Verify the scan tool parameter:
- Transmission Control Solenoid Valve 3 Control Circuit High Voltage Test Status = Not Run or OK
- Transmission Control Solenoid Valve 3 Control Circuit Low Voltage Test Status = Not Run or OK
- Transmission Control Solenoid Valve 3 Control Circuit Open Test Status = Not Run or OK
- 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 is not set
- If the DTC sets
- All OK.