P2105 - OBD II Trouble Code

Our automotive experts have put together the following information about the P2105 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2105 code.

What Does P2105 Code Mean?

OBD-II Code P2105 is defined as a Throttle Actuator Control System - Forced Engine Shutdown

The electronic throttle control system (ETCS) controls the throttle valve opening. When the driver presses the accelerator pedal, the Accelerator Pedal Position Sensor (APP) sends a signal to the engine's control module (PCM) telling the PCM how much power the driver is requesting from the engine. The PCM then commands the throttle plate to open accordingly. If the PCM detects a fault in the ETCS, the PCM may decided it is safer to shut down engine operation. The PCM will set code P2105. Additional codes may also be present.

P2105 Symptoms

• Engine may not start

Common Problems That Trigger the P2105 Code

• Accelerator Pedal Position (APP) assembly failure
• Powertrain Control Module (PCM) failure
• Throttle control motor failure
• Wiring issue