Renault Scenic P0638 Code: Troubleshooting Limp Mode and Starting Issues

Model: Renault Scenic Fault Code: P0638 Posted: 2015-05-24 14:24

My Renault Scenic is experiencing starting problems occasionally. It will sometimes run but appears to be in limp mode. After stopping, the vehicle fails to start and displays the P0638 diagnostic code. Any advice on how to resolve this issue? The P0638 code indicates a Throttle Actuator Range/Performance (Bank 1) fault. I'm looking for guidance on checking the electrical circuit and the throttle actuator itself.