The maintenance of automatic transmissions generally includes two parts: fault diagnosisand fault repair. Fault diagnosis is the use of various fault diagnosis methods to analyzethe electronic control system and hydraulic control of automatic transmissions
fest and analyze the system, mechanical control system, et., and finally determine the specific location and tool of the faulFault repair refers to adjusting, repairing, and replacing components that have been identified as faulty.The maintenance of automatic transmissions generally includes two parts: fault diagnosisand fault repair. Fault diagnosis is the use of various fault diagnosis methods to analyzethe electronic control system and hydraulic control of automatic transmissions
fest and analyze the system, mechanical control system, et., and finally determine the specific location and tool of the faulFault repair refers to adjusting, repairing, and replacing components that have been identified as faulty.
Firstly, it is necessary to eliminate automatic transmission faults caused by improper oillevel, poor oil quality, poor "state" of the linkage mechanism and engine itself, and oilleakage. Therefore, the first step in fault diagnosis is often the basic inspection of theautomatic transmission.
To distinguish whether the fauit is caused by the electronic control system or by the mechanical contro!ystem and hydraulic control system, it can be identified through manual shifting tests of the electronicautomatic transmisslon.
The difference between faults in mechanical control systems and hydraullc control systems should bedetermined through mechanical tests such as hydraulic tests, stall tests, delay tests, torque converter testsoad tests, etc.
Fihnaly, csfferent disgnostic methods ars used for fauits in different systems to determine the specific location of the faut