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 | All of the following conditions are met (1-trip detection logic):
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| Comes on | DTC stored | SAE Code: P07C0 |
P071514 | Input/Turbine Speed Sensor "A" Circuit Short to Ground or Open | All of the following conditions are met (1-trip detection logic):
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| Comes on | DTC stored | SAE Code: P07BF |
P071531 | Input/Turbine Speed Sensor "A" No Signal | All of the following conditions are met (1-trip detection logic):
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| 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* when the vehicle speed is 23 km/h (14 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 |
Engine switch | On (IG) |
Starter | OFF |
The monitor will run whenever the following DTCs are not stored | None |
Turbine speed sensor range check fail (P07BF, P07C0) (Pending / MIL) | Not detected |
Vehicle speed sensor | 23 km/h (14.3 mph) or more |
Intermediate shaft speed sensor revolution | 610 rpm or more |
Shift change is completed and before starting next shift change operation | - |
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 is met | - |
The monitor will run whenever the following DTCs are not stored | None |
Turbine speed sensor pulse input fail (P0717) (Pending / MIL) | Not detected |
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 |
ECM selected gear | 1st |
Turbine speed sensor revolution | 1450 rpm or more |
ECM selected gear | 2nd |
Turbine speed sensor revolution | 840 rpm or more |
ECM selected gear | 3rd |
Turbine speed sensor revolution | 540 rpm or more |
ECM selected gear | 4th |
Turbine speed sensor revolution | 400 rpm or more |
ECM selected gear | 5th |
Turbine speed sensor revolution | 330 rpm or more |
ECM selected gear | 6th |
Turbine speed sensor revolution | 300 rpm or more |
ECM selected gear | 7th |
Turbine speed sensor revolution | 300 rpm or more |
ECM selected gear | 8th |
Turbine speed sensor revolution | 300 rpm or more |
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 |
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 |
Turbine speed sensor voltage | Less than 0.1 V |
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:
Click here
Click here
HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Techstream Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
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N/A |
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HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
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 engine switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the engine switch on (IG).
(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.
Powertrain > Transmission > Data List Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
NT Sensor Speed | Input shaft speed | Min.: 0 rpm Max.: 12750 rpm |
| Data is displayed in increments of 50 rpm |
Tester Display |
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NT Sensor Speed |
HINT:
PROCEDURE
1. | READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Transmission / Data List / NT Sensor Speed and NT Sensor Voltage.
(e) Read the Data List according to the display on the Techstream.
Powertrain > Transmission > Data List Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
NT Sensor Speed | Input shaft speed | Min.: 0 rpm Max.: 12750 rpm |
| Data is displayed in increments of 50 rpm |
NT Sensor Voltage | NT sensor voltage | Min.: 0.000 V Max.: 4.999 V | 0.1 to 1.9 V: Engine idling | - |
Tester Display |
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NT Sensor Speed |
NT Sensor Voltage |
Result | Proceed to |
---|---|
Data List values are normal | A |
Data List values are not normal | B |
A | GO TO STEP 5 |
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2. | INSPECT TRANSMISSION REVOLUTION SENSOR (NT) |
(a) Disconnect the C30 transmission wire connector. |
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(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
C30-11 (NTO) - Body ground | Always | 99 to 101 Ω |
(c) Turn the engine switch on (IG).
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
C30-12 (NTB) - Body ground | Engine switch on (IG) | 11 to 14 V |
NG | GO TO STEP 4 |
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3. | INSPECT TRANSMISSION WIRE (TRANSMISSION REVOLUTION SENSOR (NT)) |
(a) Disconnect the transmission revolution sensor (NT) connector. Click here |
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(b) Disconnect the C30 transmission wire connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
1 (transmission revolution sensor (NT) side) - 12 (NTB) (wire harness connector side) | Always | Below 1 Ω |
2 (transmission revolution sensor (NT) side) - 11 (NTO) (wire harness connector side) | Always | Below 1 Ω |
1 (transmission revolution sensor (NT) side) or 12 (NTB) (wire harness connector side) - Body ground and other terminals | Always | 10 kΩ or higher |
2 (transmission revolution sensor (NT) side) or 11 (NTO) (wire harness connector side) - Body ground and other terminals | Always | 10 kΩ or higher |
OK | REPLACE TRANSMISSION REVOLUTION SENSOR (NT) |
NG | REPAIR OR REPLACE TRANSMISSION WIRE |
4. | CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM) |
(a) Disconnect the C30 transmission wire connector.
(b) Disconnect the C78 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
C30-12 (NTB) - C78-35 (NTB) | Always | Below 1 Ω |
C30-11 (NTO) - C78-36 (NTO) | Always | Below 1 Ω |
C30-12 (NTB) or C78-35 (NTB) - Body ground and other terminals | Always | 10 kΩ or higher |
C30-11 (NTO) or C78-36 (NTO) - Body ground and other terminals | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSMISSION WIRE - ECM) |
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5. | REPLACE ECM |
(a) Replace the ECM.
Click here
NEXT | PERFORM REGISTRATION |