
Manual transmission converted to automatic cannot pass annual inspection. Reasons why manual transmission converted to automatic cannot pass annual inspection: Any act of converting an automatic transmission to manual constitutes unauthorized vehicle modification. Once modified, not only will the vehicle fail annual inspection, but if discovered by traffic police, the vehicle may also be towed away. Function of transmission: The transmission is a crucial component in vehicles. It can change gear ratios and expand the torque and speed effects on the driving wheels. The quality of transmission performance is key to measuring the power, economy, and drivability of engineering machinery. Current transmission systems mainly include: mechanical transmission, hydraulic transmission, and hydrostatic transmission.


