The input(turbine) speed sensor outputs waveform signals according to the revolutions of the input shaft ,installed in front of End clutch retainer,of the transmission. The TCM determines the input shaft speed by calculating the frequency of the pulses. This value is mainly used to control the optimum fluid pressure during shifting.
The PCM/TCM sets this code if an output pulse-signal is not detected, from the input speed sensor, when the vehicle is running faster than 30 km/h. The Fail-Safe function will be set by the PCM/TCM if this code is detected.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Speed rationality check
? Signal circuit is open or short.
? Sensor power circuit is open
? Sensor ground circuit is open
? Faulty INPUT SPEED SENSOR
? Faulty PCM/TCM
Enable Conditions
? Battery Voltage = 10V
? Output speed = 1000rpm
? Engine speed(Only current gear is the 1st gear) = 3000rpm
? Lever position : D,3,2,L
Threshold Value
? Input speed = 0
Diagnostic Time
? More than 1sec
Fail Safe
? Locked into 3rd or 2nd gear.
? Manual shifting is possibe(2 nd ? 3 rd ,3 rd ? 2 nd)
Input shaft & Output shaft speed sensor
? Type : Hall sensor
? Current consumption : 22mA(MAX)
? sensor body and sensor connector have been unified as one.