14 Dajielong Fault P2 166 What's the problem?

The P2 166 fault code is applicable to all automobile manufacturers, indicating the maximum stopping performance of the accelerator/pedal position sensor D..

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 fault code needs to be cleared after the automobile fault is eliminated. When clearing the code, it should be carried out in strict accordance with the fault code clearing method specified for a specific vehicle model, and the negative lead of the battery should not be directly removed in order to clear the fault code. Otherwise, it may cause the following two troubles: First, the control computer of some models will lose its "experience memory". As we all know, many car computers have the function of automatic memory. After the negative battery grounding wire is easily removed, the engine running data stored in RAM will be automatically cleared, which will lead to poor performance of your car after long-term maintenance and may reappear after short-term driving. Second, it may cause the loss of normal functions, such as audio locking function is one of the very common situations. At this time, it is necessary to decrypt the sound system through a troublesome repair program to restore the original function of the sound system.