Code P2135, RPMs are now going up when idle and car shakes before turning on traction control?

Yep, this happens when the throttle pedal position sensor needs to be replaced, here is information on the codes and I have included how to change out the sensor in the images below.

The P2135 code is a generic powertrain code that indicates a problem with the throttle/pedal position sensor/switch "A"/"B" voltage correlation. This code is commonly found in vehicles with an electronic throttle control system.

Here are some possible causes for the P2135 code:

Faulty throttle position sensor: The throttle position sensor (TPS) may be malfunctioning or sending inconsistent signals to the engine control module (ECM).

Faulty accelerator pedal position sensor: The accelerator pedal position sensor (APPS) may be faulty or providing inconsistent readings to the ECM.

Wiring or connector issues: Damaged or loose wiring connections, or corroded connectors between the sensors and the ECM, can disrupt the signal transmission.

Throttle body issues: Problems with the throttle body, such as carbon buildup or a faulty motor, can cause issues with the throttle position sensor.

ECM software issue: An issue with the ECM software or programming can cause erroneous readings and trigger the P2135 code.

When the P2135 code is detected, the vehicle's engine may go into a reduced power mode or even enter a limp mode, which limits the vehicle's speed and performance.

Clear the codes once the repair is completed. Check out the images (below). Please let us know if you need anything else to get the problem fixed.