9.1. Search of malfunctions - the general information

At failure detection of automatic transmission first of all check the ATF level (see the Head of the Power supply system and production of the fulfilled gases). If level is insufficient, check a condition of the corresponding epiploons. Attentively examine all hoses of a path of ATF, and also a cooler of transmission liquid and make sure of lack of signs of development of leaks. The only thing that can be still executed by forces of the owner of the vehicle, is check/replacement of information sensors of a control system of AT, - before starting replacement of the suspected sensor, carry out a survey of memory of the module of management, - all a little essential refusals are registered in memory of the module in the form of the DTC codes, and especially serious cases of TCM emergency operation of functioning automatically switches AT. Reading of the DTC codes is made by means of the special diagnostic equipment connected to the socket of system of onboard self-diagnostics (DTC) (see the Head Sistemy of electric equipment of the engine). In the absence of access to necessary devices will be to try at least qualitatively define the refusal nature enough (at the level: electric/mechanical) for the purpose of simplification of communication with specialists of car service. It is not necessary to start removal of AT as its diagnostics is represented possible only in the established situation prematurely.