PREVENTION METHOD FOR KICK DOWN SWITCH FAIL JUDGMENT FOR AUTOMATIC TRANSMISSION AUTO MOBILE

摘要

The present invention, (a) the transmission to the speed change stage is a kick-down servo of an automatic transmission vehicle operation on the kick-down switch failure erroneous determination prevention control method which can prevent erroneous determination of a malfunction of the kick-down switch the automatic transmission vehicle comprising the steps of: determining whether only if, (b) a step of determining whether dive of the transmission oil pressure generated in the running state of the vehicle, (c) the transmission oil pressure to the speed change stage of the speed change stage is a kick-down servo of the vehicle operation If the dive be generated, and the step of determining whether the speed is the normal running range of the vehicle engine, (d) the (c) speed is the normal running range of the vehicle engine in step and the speed change stage of the vehicle, the kick If the shift-down to a single servo is operating comprises the step of warning by outputting the failure code of the kick-down switch when the dive of the transmission oil pressure occurs.