Dongfeng commercial vehicle throttle fault light

: D/E Voltage dependence of throttle/accelerator position sensor/switch

English definition: d/e voltage correlation of accelerator/pedal position sensor/switch.

Category: Fuel, Air or Emission Control

Background knowledge: In the electronic throttle control (ETC) system, the function of the accelerator pedal position (APP) sensor is to transmit the position of the accelerator pedal to the throttle control module in the form of an electrical signal, which serves as a reference for the throttle actuator to control the throttle opening.

Fault code: P2 106

English definition: Throttle actuator control system-(engine) forced to limit power.

English definition: throttle actuator control system-forced power limit

Category: Fuel, Air or Emission Control

Background knowledge: In the electronic throttle control (ETC) system, the function of the accelerator pedal position (APP) sensor is to transmit the position of the accelerator pedal to the throttle control module in the form of an electrical signal, which serves as a reference for the throttle actuator to control the throttle opening. The throttle actuator is a stepping motor, which is responsible for controlling the throttle opening according to the instruction of the throttle control module. When operating in FMEM mode, this fault code will appear if the electronic control module detects that the throttle actuator control motor (TACM) system is in forced power limiting mode. Causes of failure include failure of TACM circuit or connector, failure of electronic control module (PCM or ECM), etc.

These two fault codes are mainly the first one. There is something wrong with the throttle position sensor. When the fault occurs, the computer can't know the actual situation of the driver controlling the throttle through the throttle position sensor, so the following fault code 2 106 will appear. When the fail-safe mode is implemented, you can only run to the 80 yards you said. Go and fix it. The problem is not big.