Malfunction Threshold
When the vehicle speed measured by the input shaft (mainshaft) speed sensor [Input Shaft (Mainshaft) Speed (rpm)] is 13 mph (20 km/h) or more, the vehicle speed measured by the output shaft (countershaft) speed sensor [Output Shaft (CounterShaft) Speed (rpm)] is 1 mph (2 km/h) or less for at least 10 seconds.