DESCRIPTION
This sensor detects the rotation speed of the turbine which shows the input revolution (speed) of the transaxle. By comparing the input turbine speed signal (NT) with the counter gear speed sensor signal (NC), the TCM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according to various conditions, thus, providing smooth gear shifts.
Text in Illustration
*1 |
Counter Gear |
*2 |
Clutch Drum |
*3 |
Output Speed Sensor NC |
*4 |
Input Speed Sensor NT |
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
P0715 |
When the speed sensor input voltage is either more than 1.9 V or less than 0.1 V for 4.5 seconds or more.(1-trip detection logic) |
|
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 (R) is OFF (c) Speed sensor (NT): less than 300 rpm |
MONITOR DESCRIPTION
The NT terminal of the TCM detects a revolution signal from the speed sensor (NT) (input RPM). The TCM calculates gear shifts comparing the speed sensor (NT) with the speed sensor (NC).
While the vehicle is operating in 2nd, 3rd, 4th or 5th gear with the shift lever in D, if the input shaft revolution (speed) is less than 300 rpm*1 although the output shaft revolution (speed) is more than 1000 rpm*2, the TCM interprets this as a fault, 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 |
P0715: Speed sensor (NT)/Range check P0717: Speed sensor (NT)/Verify pulse input |
Required sensors/Components |
Speed sensor (NT), Speed sensor (NC) |
Frequency of operation |
Continuous |
Duration |
P0715: 4.5 sec. P0717: 5 sec. |
MIL operation |
Immediate |
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
P0715:
Battery voltage |
8 V or more |
Ignition switch |
ON |
Starter |
OFF |
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 before starting next shift change operation |
TCM selected gear |
2nd, 3rd, 4th, 5th or 6th |
Output shaft revolution |
1,000 rpm or more |
R switch |
OFF |
NSW switch |
OFF |
Engine |
Running |
Battery voltage |
8 V or more |
Ignition switch |
ON |
Starter |
OFF |
Transmission range switch circuit |
Not malfunction |
Turbine speed sensor range check |
Not malfunction |
TYPICAL MALFUNCTION THRESHOLDS
P0715:
Sensor voltage |
Less than 0.1 V or more than 1.9 V |
Turbine speed sensor revolution |
Less than 300 rpm |
COMPONENT OPERATING RANGE
Speed sensor (NT) |
Turbine speed is equal to engine speed with lock-up ON |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Perform the universal trip to clear permanent DTCs (See page ).
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.
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.
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
SPD (NT) |
Input shaft speed/ Min.: 0 rpm Max.: 12750 rpm |
Lock-up is
|
Data is displayed in increments of 50 rpm |
HINT:
PROCEDURE
1. |
INSPECT SPEED SENSOR (SENSOR INSTALLATION) |
(a) Remove the valve body assembly.
(b) Make sure that the connector is properly connected, and check the speed sensor installation. OK: The installation bolt is tightened properly and there is no clearance between the sensor and transaxle case. |
|
NG |
REPAIR OR REPLACE SPEED SENSOR |
|
2. |
INSPECT TRANSMISSION WIRE |
(a) Remove the TCM. |
|
(b) Disconnect the speed sensor connector from the transmission wire.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Condition |
Condition |
Specified Condition |
---|---|---|
1 (NTB) sensor side - 1 (NTB) TCM side |
Always |
Below 1 Ω |
2 (NTO) sensor side - 2 (NTO) TCM side |
Always |
Below 1 Ω |
1 (NTB) sensor side - Body ground |
Always |
10 kΩ or higher |
2 (NTO) sensor side - Body ground |
Always |
10 kΩ or higher |
1 (NTB) sensor side - All other terminals except 2 (NTO) sensor side |
Always |
10 kΩ or higher |
2 (NTO) sensor side - All other terminals except 1 (NTB) sensor side |
Always |
10 kΩ or higher |
*1 |
Component without harness connected) (Transmission Wire) |
*2 |
TCM Side |
*3 |
Sensor Side |
NG |
REPLACE TRANSMISSION WIRE |
|
3. |
REPLACE SPEED SENSOR |
(a) (See page ).
|
4. |
CHECK IF DTC OUTPUT RECURS (SEE IF DTC P0715 AND/OR P0717 OUTPUT AGAIN) |
(a) Connect the Techstream to the DLC3.
(b) Start the engine and turn the Techstream on.
(c) Enter the following menus: Powertrain / ECT / DTC / Clear.
HINT:
Write down the currently output DTCs before clearing them.
(d) Perform the monitor drive pattern (See page ).
(e) Enter the following menus: Powertrain / ECT / DTC.
(f) Read the DTCs using the Techstream.
Display (DTC Output) |
Proceed to |
---|---|
Only "P0715 or P0717" is output |
A |
No output |
B |
A |
REPLACE TCM |
B |
END |
Security Indicator Light Circuit
DESCRIPTION
Even when the theft deterrent system is in the disarmed state, the security indicator
blinks due to a signal output from the immobiliser system. The security indicator
blinks continuously due to a continuous signal received from the immobilise ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT INNER REAR VIEW MIRROR ASSEMBLY
(a) Inspect operation of the electrochromic inner mirror.
(1) Connect a positive (+) lead from the battery to terminal 1 and a negative
(-) lead to terminal 2.
(2) Press the AUTO switch.
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 2C, 2F and 2K main body ECU (driver side junction block assembly)
connectors.
(b) Measure the voltage and resistance according to the value(s) in the table ...