DTC P0717 Input Speed Sensor Circuit No Signal: Description
This sensor detects the rotation speed of the turbine, which shows the input revolution of the transmission. By comparing the input speed signal (NT) with the counter gear speed sensor signal (SP2), the ECM detects the shift timing of the gears and controls the engine torque and hydraulic pressure according to various conditions, providing smooth gear shift.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002 DTC DETECTION CONDITION CHART
| DTC No. |
DTC Detection Condition |
Trouble Area |
| P0717 |
All conditions below are detected for 5 sec. or more (1 trip detection logic):
- Gear changes not performed
- Gear position: 4th or 5th
- Transmission input shaft rpm: 300 rpm or less
- Transmission output shaft rpm: 1,000 rpm or more
- PNP switch is OFF
- Shift solenoid valves and PNP switch are operating normally
|
- Open or short in speed sensor NT circuit
- Speed sensor NT
- ECM
- Automatic transmission (clutch, brake or gear, etc.)
|
- Reference: Inspect using an oscilloscope.
Check the waveform of the ECM connector.
Standard voltage: Refer to illustration
STANDARD VOLTAGE SPECIFICATION
| Item |
Content |
| Tester Connection |
E7-35 (NT+) - E7-27 (NT-) |
| Tool Setting |
1 V/DIV., 2 msec./DIV. |
| Condition |
Engine idle speed (shift lever on P or N) |
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002