Dtc P0717 Turbine Speed Sensor Circuit No Signal
DESCRIPTION
MONITOR DESCRIPTION
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
COMPONENT OPERATING RANGE
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT SPEED SENSOR INSTALLATION
INSPECT SPEED SENSOR (NT)
CHECK HARNESS AND CONNECTOR (SPEED SENSOR - ECM)
DTC P0717 Turbine Speed Sensor Circuit No Signal |
DESCRIPTION
This sensor detects the rotation speed of the input turbine. By comparing the input turbine speed signal (NT) with the counter gear speed sensor signal (NC), the ECM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according to various conditions. Thus, providing smooth gear shift.DTC No.
| DTC Detection Condition
| Trouble Area
|
P0717
| ECM detects conditions (a), (b) and (c) continuously for 5 sec. or more: (1-trip detection logic)
(a) Vehicle speed: 50 km/h (31 mph) or more
(b) Park/neutral position switch (NSW and R) is OFF
(c) Speed sensor (NT): less than 300 rpm
| - Open or short in transmission revolution sensor NT (speed sensor NT) circuit
- Transmission revolution sensor NT (speed sensor NT)
- ECM
- Automatic transaxle assembly
|
Reference (Using an oscilloscope):Check the waveform between terminals NT+ and NT- of the ECM connector.Standard: Refer to the illustration.Terminal
| NT+ - NT-
|
Tool setting
| 5 V/DIV., 0.5 ms./DIV.
|
Vehicle condition
| Vehicle speed 20 km/h (12 mph)
|
MONITOR DESCRIPTION
The NT terminal of the ECM detects a revolution signal from the speed sensor (NT) (input RPM). The ECM calculates a gearshift comparing the speed sensor (NT) with the speed sensor (NC).While the vehicle is operating in 2nd, 3rd, 4th or 5th gear in the shift position of D, if the input shaft revolution is less than 300 rpm *1although the output shaft revolution is more than 1,000 rpm *2, the ECM detects the trouble, illuminates the MIL and stores the DTC. *1: Pulse is not output or is irregularly output.*2: The vehicle speed is 50 km/h (31 mph) or more.
MONITOR STRATEGY
Related DTCs
| P0717: Speed sensor (NT)/Verify pulse input
|
Required sensors/Components
| Speed sensor (NT), Speed sensor (NC)
|
Frequency of operation
| Continuous
|
Duration
| 5 sec.
|
MIL operation
| Immediate
|
Sequence of operation
| None
|
TYPICAL ENABLING CONDITIONS
The monitor will run whenever this DTC is not present.
| P0500 (VSS)
P0748, P0778, P0798 (Shift solenoid valve (range))
|
Shift change
| Shift change is completed and before starting next shift change operation
|
ECM selected gear
| 2nd, 3rd, 4th or 5th
|
Output shaft revolution
| 1,000 rpm or more
|
NSW switch
| OFF
|
R switch
| OFF
|
Engine
| Running
|
Battery voltage
| 8 V or more
|
Ignition switch
| ON
|
Starter
| OFF
|
TYPICAL MALFUNCTION THRESHOLDS
Turbine speed sensor revolution
(Speed sensor (NT))
| Less than 300 rpm
|
COMPONENT OPERATING RANGE
Speed sensor (NT)
| Turbine speed is equal to engine speed with lock-up ON
|
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- Perform the universal trip to clear permanent DTCs (Link).
| 1.INSPECT SPEED SENSOR INSTALLATION |
Check the speed sensor installation.
- OK:
- The installation bolt is tightened properly and there is no clearance between the sensor and transaxle case.
| 2.INSPECT SPEED SENSOR (NT) |
Disconnect the speed sensor connector from the transaxle.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
20 °C (68 °F)
|
1 - 2
| 20°C (68°F)
| 560 to 680 Ω
|
| 3.CHECK HARNESS AND CONNECTOR (SPEED SENSOR - ECM) |
Connect the speed sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
B31-125 (NT+) - B31-124 (NT-)
| 20°C (68°F)
| 560 to 680 Ω
|
Measure the resistance according to the value(s) in the table below.
- Standard resistance (Check for short):
Tester Connection
| Condition
| Specified Condition
|
B31-125 (NT+) - Body ground
| Always
| 10 kΩ or higher
|
B31-124 (NT-) - Body ground
| Always
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
