Last Modified: 04-05-2023 |
6.11:8.1.0 |
Doc ID: RM1000000018BOT |
Model Year Start: 2018 |
Model: Sienna |
Prod Date Range: [11/2017 -
] |
Title: UA80E (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: P071512,P071514,P071531; Input/Turbine Speed Sensor "A" Circuit Short to Battery; 2018 - 2020 MY Sienna [11/2017 - ] |
DTC
|
P071512
|
Input/Turbine Speed Sensor "A" Circuit Short to Battery
|
DTC
|
P071514
|
Input/Turbine Speed Sensor "A" Circuit Short to Ground or Open
|
DTC
|
P071531
|
Input/Turbine Speed Sensor "A" No Signal
|
DESCRIPTION
The transmission revolution sensor (NT) detects the input shaft rotation speed and sends it to the ECM.
Based on the transmission revolution sensor (NT) signal and the transmission revolution sensor (NC) signals, the ECM controls engine torque and shift timing. Based on the input shaft rotation speed and the engine speed signal, lock-up control is performed.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
MIL
|
Memory
|
Note
|
P071512
|
Input/Turbine Speed Sensor "A" Circuit Short to Battery
|
1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
-
The battery voltage is 8 V or more, the ignition switch ON and the starter is off.
-
Transmission revolution sensor (NT) input voltage is more than 1.9 V
-
4.5 seconds
-
1-trip detection logic
|
-
Transmission revolution sensor (NT)
-
Transmission wire
-
Harness and connector
-
ECM
|
Comes on
|
DTC stored
|
SAE Code:
P07C0
|
P071514
|
Input/Turbine Speed Sensor "A" Circuit Short to Ground or Open
|
1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
-
The battery voltage is 8 V or more, the ignition switch ON and the starter is off.
-
Transmission revolution sensor (NT) input voltage is less than 0.1 V
-
4.5 seconds
-
1-trip detection logic
|
-
Transmission revolution sensor (NT)
-
Transmission wire
-
Harness and connector
-
ECM
|
Comes on
|
DTC stored
|
SAE Code:
P07BF
|
P071531
|
Input/Turbine Speed Sensor "A" No Signal
|
1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
-
All of the following conditions are met:
-
The battery voltage is 8 V or more.
-
Park/neutral position switch D input signal is ON
-
Speed indicated by transmission revolution sensor (NC) is 490 rpm or more
-
The vehicle speed is 23 km/h (14.29 mph) or more.
-
Vehicle being driven in 1st, 2nd, 3rd, 4th, 5th, 6th, 7th or 8th gear
-
Speed indicated by transmission revolution sensor (NT) is less than 300 rpm
-
5 seconds
-
1-trip detection logic
|
-
Transmission revolution sensor (NT)
-
Transmission wire
-
Harness and connector
-
ECM
|
Comes on
|
DTC stored
|
SAE Code:
P0717
|
MONITOR DESCRIPTION
The NT terminal of the ECM detects a pulse signal from the transmission revolution sensor (NT) (input RPM). The ECM calculates gear shifts by comparing input signals of the transmission revolution sensor (NT) with the transmission revolution sensor (NC).
While the vehicle is being driven in 1st, 2nd, 3rd, 4th, 5th, 6th, 7th or 8th gear with the shift lever in D, if the input shaft revolution (speed) is less than 300 rpm*1 when the vehicle speed is 23 km/h (14.29 mph) or more, the ECM interprets this as a malfunction, illuminates the MIL and stores a DTC.
*: Pulse is not output or is irregularly output.
MONITOR STRATEGY
Related DTCs
|
P0717: Speed sensor (NT)/Verify pulse input
P07BF: Speed sensor (NT)/Range check (Low voltage)
P07C0: Speed sensor (NT)/Range check (High voltage)
|
Required sensors/Components
|
Speed sensor (NT), Speed sensor (NC)
|
Frequency of operation
|
Continuous
|
Duration
|
P0717: 5 sec.
P07BF, P07C0: 4.5 sec.
|
MIL operation
|
Immediate
|
Sequence of operation
|
None
|
TYPICAL ENABLING CONDITIONS
All
Battery voltage
|
8 V or more
|
Ignition switch
|
ON
|
Starter
|
OFF
|
P0717
The monitor will run whenever the following DTCs are not present
|
None
|
Turbine speed sensor range check fail (P07BF, P07C0)
(Pending / MIL)
|
Not detected
|
Vehicle speed sensor
|
23 km/h (14.29 mph) or more
|
Intermediate shaft speed sensor revolution
|
490 rpm or more
|
Shift change is completed and before starting next shift change operation
|
-
|
ECM selected gear
|
1st, 2nd, 3rd, 4th, 5th, 6th, 7th or 8th
|
Park/neutral position switch
|
OFF
|
R range position switch
|
OFF
|
D range position switch
|
ON
|
Engine
|
Running
|
Pressure control solenoid circuit fail (P08C1, P08C2, P0962, P0963, P0966, P0967, P0970, P0971, P2720, P2721, P2814, P2815, P281D, P281E)
(Pending + MIL)
|
Not detected
|
Torque Converter Clutch Pressure Control Solenoid circuit fail (P2763,P2764)
(Pending + MIL)
|
Not detected
|
Torque Converter Clutch Solenoid circuit fail (P2769, P2770)
(Pending + MIL)
|
Not detected
|
Vehicle Speed Sensor monitor condition judgment
|
-
|
P07BF, P07C0
The monitor will run whenever the following DTCs are not present
|
None
|
Turbine speed sensor pulse input fail (P0717)
(Pending / MIL)
|
Not detected
|
Vehicle speed sensor monitor condition judgment:
Intermediate Shaft Speed Sensor revolution
|
300 rpm or more
|
Shift change is completed and before starting next shift change operation
|
-
|
R range position switch
|
OFF
|
D range position switch
|
ON
|
Park/neutral position switch
|
OFF
|
Engine
|
Running
|
Pressure control solenoid circuit fail (P08C1, P08C2, P0962, P0963, P0966, P0967, P0970, P0971, P2720, P2721, P2814, P2815, P281D, P281E)
(Pending + MIL)
|
Not detected
|
Torque converter clutch pressure control solenoid circuit fail (P2763,P2764)
(Pending + MIL)
|
Not detected
|
Torque converter clutch solenoid circuit fail (P2769, P2770)
(Pending + MIL)
|
Not detected
|
One of the following conditions is met: Condition (A), (B), (C), (D), (E), (F), (G) or (H)
-
Condition (A)
ECM selected gear
|
1st
|
Turbine speed sensor revolution
|
1450 rpm or more
|
Condition (B)
ECM selected gear
|
2nd
|
Turbine speed sensor revolution
|
840 rpm or more
|
Condition (C)
ECM selected gear
|
3rd
|
Turbine speed sensor revolution
|
540 rpm or more
|
Condition (D)
ECM selected gear
|
4th
|
Turbine speed sensor revolution
|
400 rpm or more
|
Condition (E)
ECM selected gear
|
5th
|
Turbine speed sensor revolution
|
330 rpm or more
|
Condition (F)
ECM selected gear
|
6th
|
Turbine speed sensor revolution
|
300 rpm or more
|
Condition (G)
ECM selected gear
|
7th
|
Turbine speed sensor revolution
|
300 rpm or more
|
Condition (H)
ECM selected gear
|
8th
|
Turbine speed sensor revolution
|
300 rpm or more
|
Either of the following conditions is met: Condition (I) or (J)
-
Condition (I)
ECT
|
20°C (68°F) or more
|
ECT sensor circuit fail (P0117, P0118)
(Pending + MIL)
|
Not detected
|
Time after park/neutral position switch ON to OFF
|
2 sec. or more
|
Condition (J)
Either of the following conditions is met
|
(a) or (b)
|
(a) ECT
|
Less than 20°C (68°F)
|
(b) ECT sensor circuit fail (P0117, P0118)
(Pending + MIL)
|
Detected
|
Time after park/neutral position switch ON to OFF
|
30 sec. or more
|
TYPICAL MALFUNCTION THRESHOLDS
P0717
Turbine speed sensor revolution
|
Less than 300 rpm
|
P07BF
Turbine speed sensor voltage
|
Less than 0.1 V
|
P07C0
Turbine speed sensor voltage
|
More than 1.9 V
|
COMPONENT OPERATING RANGE
Turbine speed sensor revolution
|
300 rpm or more
|
Turbine speed sensor voltage
|
0.1 V or more and 1.9 V or less
|
CONFIRMATION DRIVING PATTERN
CAUTION:
When performing the D Position Shift Test inspection in Road Test, obey all speed limits and traffic laws.
HINT:
-
After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
-
When clearing the permanent DTCs, refer to the Clear Permanent DTC procedure.
Click here
-
Connect the Techstream to the DLC3.
-
Turn the ignition switch to ON and turn the Techstream on.
-
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
-
Turn the ignition switch off and wait for 2 minutes or more.
-
Turn the ignition switch to ON and turn the Techstream on.
-
Start the engine.
-
Perform the D Position Shift Test inspection in Road Test. [*1]
Click here
HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
-
Stop the vehicle.
-
Enter the following menus: Powertrain / Transmission / Utility / All Readiness.
-
Input the DTC: P071512, P071514 or P071531.
-
Check the DTC judgment result.
Techstream Display
|
Description
|
NORMAL
|
-
DTC judgment completed
-
System normal
|
ABNORMAL
|
-
DTC judgment completed
-
System abnormal
|
INCOMPLETE
|
-
DTC judgment not completed
-
Perform driving pattern after confirming DTC enabling conditions
|
N/A
|
-
Unable to perform DTC judgment
-
Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
|
HINT:
-
If the judgment result shows NORMAL, the system is normal.
-
If the judgment result shows ABNORMAL, the system has a malfunction.
-
If the judgment result shows INCOMPLETE or N/A, perform the normal judgment procedure again.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Perform the universal trip to clear permanent DTCs.
Click here
-
Perform registration and/or initialization when parts related to the automatic transaxle are replaced.
Click here
DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Enter the following menus: Powertrain / Transmission / Data List / NT Sensor Speed.
(g) Read the Data List according to the display on the Techstream.
Transmission
Tester Display
|
Measurement Item
|
Range
|
Normal Condition
|
Diagnostic Note
|
NT Sensor Speed
|
Input shaft speed
|
Min.: 0 rpm
Max.: 12750 rpm
|
-
Equal to engine speed: Lock-up on (after warming up engine)
-
Nearly equal to engine speed: Lock-up off (idling with shift lever in N)
|
Data is displayed in increments of 50 rpm
|
HINT:
-
NT Sensor Speed is always 0 while driving: Open or short in the sensor or circuit.
-
NT Sensor Speed is always more than 0 and less than 300 rpm while driving the vehicle at 50 km/h (31 mph) or more: Sensor malfunction, improper installation, or intermittent connection malfunction in the circuit.
PROCEDURE
1.
|
READ VALUE USING TECHSTREAM (NT SENSOR SPEED AND NT SENSOR VOLTAGE)
|
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Transmission / Data List
(e) In accordance with the display on the Techstream, read the Data List.
Transmission
Tester Display
|
Measurement Item/Range
|
Normal Condition
|
Diagnostic Note
|
NT Sensor Speed
|
Input shaft speed/
Min.: 0 rpm
Max.: 12750 rpm
|
-
Lock-up on (after warming up the engine): Value from transmission revolution sensor (NT) equal to engine speed
-
Lock-up off (idling with shift lever in N): Value from transmission revolution sensor (NT) nearly equal to engine speed
|
Data is displayed in increments of 50 rpm
|
NT Sensor Voltage
|
Transmission revolution sensor (NT) output voltage/
Min.: 0.000 V
Max.: 4.999 V
|
0.1 to 1.9 V: Engine idling
|
-
|
Result
|
Proceed to
|
Data display is not within Normal Condition range
|
A
|
Data display is within Normal Condition range
|
B
|
A
|
|
|
2.
|
INSPECT TRANSMISSION REVOLUTION SENSOR (NT)
|
(a) Disconnect the transmission wire connector.
|
|
*a
|
Front view of wire harness connector
(to Transmission Wire)
|
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
B65-11 (NTO) - Body ground
|
Always
|
99 to 101 Ω
|
(c) Turn the ignition Switch to ON.
(d) Measure the current according to the value(s) in the table below.
Standard Voltage:
Tester Connection
|
Switch Condition
|
Specified Condition
|
B65-12 (NTB) - Body ground
|
Ignition Switch ON
|
11 to 14 V
|
OK
|
|
|
3.
|
TRANSMISSION REVOLUTION SENSOR (NT) (NT TERMINAL)
|
(a) Disconnect the transmission revolution sensor (NT) connector.
Click here
(b) Disconnect the B65 transmission wire connector.
|
|
*a
|
Front view of wire harness connector
(to Transmission Revolution Sensor (NT))
|
*b
|
Component without harness connected
(Transmission Wire)
|
|
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
|
Condition
|
Specified Condition
|
Transmission revolution sensor (NT) connector terminal 1 - B65-12 (NTB)
|
Always
|
Below 1 Ω
|
Transmission revolution sensor (NT) connector terminal 2 - B65-11 (NTO)
|
Always
|
Below 1 Ω
|
Transmission revolution sensor (NT) connector terminal 1 or B65-12 (NTB) - Body ground
|
Always
|
10 kΩ or higher
|
Transmission revolution sensor (NT) connector terminal 2 or B65-11 (NTO) - Body ground
|
Always
|
10 kΩ or higher
|
4.
|
CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
|
(a) Disconnect the B65 transmission wire connector.
(b) Disconnect the B67 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
B65-12 (NTB) - B67-75 (NTB)
|
Always
|
Below 1 Ω
|
B65-11 (NTO) - B67-74 (NTO)
|
Always
|
Below 1 Ω
|
B65-12 (NTB) or B67-75 (NTB) - Body ground
|
Always
|
10 kΩ or higher
|
B65-11 (NTO) or B67-74 (NTO) - Body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
(a) Replace the ECM.
Click here
|