关键词: 手动变速器；综合式变速器；故障诊断；故障排除方法

Abstract: Automotive transmission is the key component of vehicle power transmission, and its normal operation is crucial to the performance and driving safety of the vehicle. However, the transmission often fails due to wear, improper operation and design and manufacturing defects. This article introduces the wide applications of manual transmission and integrated transmission of automotive transmission, from their respective structural characteristics, advantages, disadvantages and common fault phenomenon, analyzes the causes of failure, and puts forward the corresponding troubleshooting methods to ensure the performance of the transmission, improve the safety and stability of vehicle operation, and provide the reference for vehicle maintenance technicians.

Key words: manual transmission; integrated transmission; fault diagnosis; troubleshooting method