Fault code P 12 19

Fault code applicable model: BMW fault code: P 12 19 Chinese meaning: throttle position (TP) sensor B/ accelerator pedal position (app) sensor B- circuit fault English meaning: throttle position sensor B/ accelerator pedal position sensor B- circuit fault category: power system (meaning from manufacturer) Detailed meaning: throttle position (TP) 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 applicable models: Audi and Volkswagen fault code: P 12 19 Chinese meaning: short circuit of injector circuit to cylinder 7 English meaning: short circuit of injector circuit to cylinder 7 Category: powertrain system (from the manufacturer's own meaning) Detailed meaning: The function of injector is to atomize fuel to meet the requirements of combustion. The working principle is that when the electromagnetic coil is energized, it generates suction, the needle valve is sucked up, the nozzle is opened, and the fuel is ejected at high speed through the annular gap between the needle and the nozzle, forming a fog. The ECU controls the fuel injection quantity by controlling the opening time interval (also called pulse width) of the fuel injector.