Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 2011n cip0717
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DIAGNOSTICS - ELECTRONIC CONTROLLED AUTOMATIC 05-579
TRANSAXLE [ECT] 05NPD-01
DTC P0717 TURBINE SPEED SENSOR CIRCUIT NO
SIGNAL
CIRCUIT 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 appropri-
ately controls the engine torque and hydraulic pressure according to various conditions. Thus, providing
smooth gear shift.
DTC No. DTC Detection Condition Trouble Area
ECM detects conditions (a), (b) and (c) continuity for 5 sec. or S Open or short in transmission revolution sensor NT (speed
more: (1-trip detection logic) sensor NT) circuit
P0717 (a) Vehicle speed: 50 km/h (31 mph) or more S Transmission revolution sensor NT (speed sensor NT)
(b) Park/neutral position switch (NSW and R) is OFF S ECM
(c) Speed sensor (NT): less than 300 rpm S Automatic transaxle assembly
Reference (Using an oscilloscope):
5 V/DIV
Check the waveform between the terminals NT+ and NT-
of the ECM connector.
Standard: Refer to the illustration.
Terminal NT+ - NT-
Tool setting 5V/DIV, 0.5ms/DIV
Vehicle condition Vehicle speed 20 km/h (12 mph)
0.5 ms/DIV
C42920 C53419
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*1 although 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
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 762
05-580 DIAGNOSTICS - ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT]
TYPICAL ENABLING CONDITIONS
The monitor will run whenever this DTC is not present. See page 05-533
Shift change Shift change is completed and before starting next shift change operation
ECM selected gear 2nd, 3rd, 4th or 5th
Output shaft rpm 1,000 rpm or more
NSW switch OFF
R switch OFF
L switch OFF
Engine Running
Ignition switch ON
Starter OFF
TYPICAL MALFUNCTION THRESHOLDS
Sensor signal rpm Less than 300 rpm
COMPONENT OPERATING RANGE
Speed sensor (NT) Turbine speed is equal to engine speed when lock-up ON
WIRING DIAGRAM
T3 ECM
Turbine Speed Sensor
27
W-R
E7 NT+
1 2
35
LG
E7 NT-
C93634
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 763
DIAGNOSTICS - ELECTRONIC CONTROLLED AUTOMATIC 05-581
TRANSAXLE [ECT]
INSPECTION PROCEDURE
1 INSPECT SPEED SENSOR(NT)
(a) Disconnect the speed sensor connector from the trans-
axle.
(b) Measure the resistance between terminals of speed sen-
sor.
OK:
Resistance:
TOYOTA made: 500 to 620 at 20 _C (68 _F)
AISIN made: 560 to 680 at 20 _C (68 _F)
C58536
NG REPLACE SPEED SENSOR(NT)
(See page 40-20 )
OK
2 CHECK HARNESS AND CONNECTOR(SPEED SENSOR - ECM)
(a) Connect the speed sensor connector.
E8 E7 E6 E5 E4 (b) Disconnect the ECM connector.
(c) Measure the resistance between terminals NT+ and NT-.
OK:
Resistance:
NT+ TOYOTA made: 500 to 620 at 20 _C (68 _F)
AISIN made: 560 to 680 at 20 _C (68 _F)
NT-
(d) Check the continuity between the wire harness side con-
C82158 C91565 nectors.
OK:
Standard (Check for short):
Symbols Specified condition
NT+ - Body ground
No continuity
NT- - Body ground
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR(See page 01-37 )
OK
CHECK AND REPLACE ECM(See page 01-37 )
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 764
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