Shifter's fault diagnosis device and shifter's fault diagnosis method

摘要

The abnormality diagnosing apparatus 5 of the shifter 8 of this invention is an apparatus used for the automatic transmission 3 provided with a manual mode, The said shifter 8 receives the signal according to the position of the select lever 8a. The second switch 47 which outputs a signal according to the position of the select lever 8a when the select switch 8a is located at the first switch 46 to output and at least the upshift range and the downshift range. And the abnormality diagnosing device 5 includes diagnostic means 5 for diagnosing the abnormality of the second switch 47 from an output signal of the second switch 47 and the first switch 46. Of the second switch 47 by the diagnostic means 5 when the select lever 8a is determined not to be located in the advance range including the upshift range and the downshift range, Prohibition means 5 which prohibits abnormal diagnosis is provided.