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 TCM sets this code if an output pulse-signal is not detected, from the INPUT SPEED SENSOR(PG-A), when the vehicle is running faster than 30 km/h. The Fail-Safe function will be set by the TCM if this code is det
Item
Detecting Condition
Possible Cause
DTC Strategy
? Speed rationality check
? Faulty INPUT SPEED SENSOR
? Faulty PCM/TCM
Enable Conditions
? Battery voltage = 9V
? Inhibitor switch : "D,2,L"
? Output shaft speed = 1000rpm
? Engine speed(only 1st gear) = 3000rpm
Threshold Value
? No signal
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 : Magnetic Inductive Type
? sensor body and sensor connector have been unified as one.