Dtc P0717 Turbine Speed Sensor Circuit No Signal

Transmission. Camry. Acv40 Gsv40
U250E Automatic Transaxle. Camry. Acv40 Gsv40

DESCRIPTION

MONITOR DESCRIPTION

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 (STAR and R) is OFF
(c) Speed sensor (NT): less than 300 rpm
  1. Open or short in transmission revolution sensor NT (speed sensor NT) circuit
  2. Transmission revolution sensor NT (speed sensor NT)
  3. ECM
  4. Automatic transaxle assembly
Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P0717 Turbine Speed Sensor Circuit No Signal
Reference (Using an oscilloscope):
Check the waveform between terminals NT+ and NT- of the ECM connector.

Standard: Refer to the illustration.:

Terminal
Tool setting
Vehicle condition
NT+ - NT-
5 V/DIV., 0.5ms./DIV.
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.

WIRING DIAGRAM


Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P0717 Turbine Speed Sensor Circuit No Signal


INSPECTION PROCEDURE

1.INSPECT SPEED SENSOR INSTALLATION


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P0717 Turbine Speed Sensor Circuit No Signal

  1. Check the speed sensor installation.

    OK:
    The installation bolt is tightened properly and there is no clearance between the sensor and transaxle case.


NG
REPLACE SPEED SENSOR (NT)
OK


2.INSPECT SPEED SENSOR (NT)


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P0717 Turbine Speed Sensor Circuit No Signal

  1. Disconnect the speed sensor connector from the transaxle.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Specified Condition
    20 °C (68 °F)
    1 - 2
    		560 to 680 Ω


NG
REPLACE SPEED SENSOR (NT)
OK


3.CHECK HARNESS AND CONNECTOR (SPEED SENSOR - ECM)


    Camry. Acv40 Gsv40.U250E Automatic Transaxle.Automatic Transaxle System. Dtc P0717 Turbine Speed Sensor Circuit No Signal

  1. Connect the speed sensor connector.

  1. Disconnect the ECM connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    		Specified Condition
    20°C (68°F)
    C24-125 (NT+) - C24-124 (NT-)
    		560 to 680 Ω

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance (Check for short):
    Tester Connection
    		Specified Condition
    C24-125 (NT+) - Body ground
    		10 kΩ or higher
    C24-124 (NT-) - Body ground


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM