The input(turbine) speed sensor outputs pulse-signals according to the revolutions of the input shaft of the transmission. The PCM/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 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(18.64MPH). 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
? Vehicle speed is over 30 km/h(18.64MPH) 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(In 1st or 2nd gear)
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.