DTC P0717

DTC P0717:  Input/Turbine Speed Sensor "A" Circuit No Signal

General Description 

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.

The torque converter turbine speed sensor is attached to the outside of the transmission housing. The torque converter turbine speed sensor detects the number of revolutions of the gear on the input shaft and sends a pulsing signal to the powertrain control module (PCM). The PCM converts the pulses to input shaft speed. If no pulses occur with the input shaft rotating, the PCM detects a malfunction that may be caused by an open, an intermittent open, or a short to ground. Based on the correlation between the torque converter turbine speed sensor and the CVT drive pulley speed sensor, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status 

Execution	Continuous
Sequence	None
Duration	10 seconds or more
DTC Type	One drive cycle, MIL on, A/T gear position indicator blinks

OBD Status

PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Enable Conditions 

Condition		Minimum	Maximum
Engine speed [Engine Speed]		550 rpm	-
Drive pulley speed [Input Shaft (Drive Pulley) Speed rpm]		350 rpm	-
12 volt battery voltage [Battery Voltage]		10.0 V	-
Shift lever position	Without paddle shifter	D, S, L
	With paddle shifter	D, S
No active DTCs set (prevents monitor from running)		P0716, P0792, P0793
Other		Not when the shift lever is being shifted
		No electrical noise in the torque converter turbine speed sensor output circuit

[ ]:HDS Parameter

Malfunction Threshold 

The rotation speed [Torque Converter Turbine Speed] measured by the torque converter turbine speed sensor is 60 rpm or less for at least 10 seconds when the rotation speed [Input Shaft (Drive Pulley) Speed rpm] measured by the CVT drive pulley speed sensor is 350 rpm or more.

Possible Cause 

NOTE:  The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

• Torque converter turbine speed sensor line open (includes connector loose connection or disconnection)
• Torque converter turbine speed sensor line short to ground
• Torque converter turbine speed sensor failure
• PCM internal circuit failure

Confirmation Procedure 

Operating Condition 

• Start the engine.
• Drive the vehicle at a speed of 19 mph (30 km/h) or more for at least 30 seconds.

• Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

With the HDS 

None.

Diagnosis Details 

Conditions for setting the DTC 

When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory.

Conditions for clearing the DTC 

The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.