The input(turbine) speed sensor outputs pulse-signals according to the revolutions of the input shaft of the transmission. The TCM determines the input shaft speed by counting 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, when the vehicle is running faster than 30 km/h. The Fail-Safe function will be set by the 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 | ● Vehicle speed is over 19 Mile/h(30 Km/h) in D,3,2,L(A/T range swhitch) and SP(SPORTS MODE) ● But do not check the DTC in below condition - A/T oil temp sensor voltage ＞4.5 V - Eng revolution < 2600 rpm | |
Threshold Value | ● No signal | |
Diagnostic Time | ● More than 1sec | |
Fail Safe | ● Locked into 3rd or 2nd gear. ● Manual shifting is possibe(2nd → 3rd, 3rd → 2nd) |
Input shaft & Output shaft speed sensor
● Type : Hall sensor
● Current consumption : 22mA(MAX)
● sensor body and sensor connector have been unified as one.
