What are the causes of Toyota P1603 engine stalling and shutting down?
1 Answers
Toyota P1603 engine stalling and shutting down is caused by engine stalling failure or transmission failure, etc. The following are the related causes: Engine failure: The engine control module, also known as the engine control unit (in some vehicles, the engine control module and transmission control module are integrated into a powertrain control module), controls the operation of the entire engine. Its main function is to control the optimal fuel injection amount and ignition timing of the engine. Another important function is to monitor the components of exhaust emission control. Transmission failure: The main cause of transmission failure is often a dirty valve body. A dirty transmission valve body can degrade the quality and friction characteristics of the transmission fluid. This increases friction and wear, and sludge can also form inside the transmission, causing blockages in the valve body and pipelines, which disrupts the proper regulation of hydraulic pressure, leading to transmission failure issues.