DTC P0717/67 Input Speed Sensor Circuit No Signal |
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DESCRIPTION
The speed sensor (NC0) detects the rotation speed of the O/D input shaft from the rotation speed of the O/D direct clutch drum. Its construction is the same as that of the speed sensor (SP2).
By comparing the speed sensor (NC0) signal with the speed sensor (SP2) signal, the ECM detects the shift timing of the gears and controls the engine torque and hydraulic pressure according to various conditions. As a result, the gears shift smoothly.
DTC No. | DTC Detection Condition | Trouble Area |
P0717/67 |
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- *1: w/ Secondary Air Injection System
- *2: w/o Secondary Air Injection System
MONITOR DESCRIPTION
The input speed sensor (NC0) detects the transmission input shaft speed. The ECM determines the gear shift timing based on a comparison of the input speed sensor (NC0) (input shaft speed) with the output speed sensor (output shaft speed).When the output shaft speed is higher than the expected value and the input shaft speed is 300 rpm or less while the vehicle is running with the shift lever on D, the ECM will conclude that there is a malfunction in the input speed sensor (NC0). The ECM will illuminate the MIL and set the DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
1.CHECK SPEED SENSOR (NC0) (INSTALLATION) |
Check the speed sensor installation.
- OK:
- Installation bolt is tightened properly and there is no clearance between sensor and transmission case.
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OK | |
2.INSPECT SPEED SENSOR (NC0) |
Disconnect the T6 sensor connector from the transmission.
Measure the resistance of the sensor.
- Standard resistance:
Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 560 to 680 Ω
- HINT:
- Reference: Inspect using an oscilloscope.
- Check the waveform of the ECM connector.
- OK:
- Refer to illustration
Item Content Tester Connection E11-34 (NC0+) - E11-26 (NC0-) Tool Setting 5 V/DIV, 0.5 msec./DIV. Condition Engine is idling
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OK | |
3.CHECK WIRE HARNESS (SPEED SENSOR (NC0) - ECM) |
Disconnect the E11 ECM connector.
Measure the resistance of the wire harness side connector.
- Standard resistance:
Tester Connection Condition Specified Condition E11-34 (NC0+) - E11-26 (NC0-) 20°C (68°F) 560 to 680 Ω E11-34 (NC0+) - Body ground 20°C (68°F) 10 kΩ or higher E11-26 (NC0-) - Body ground 20°C (68°F) 10 kΩ or higher
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OK | ||
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