P0717

DTC P0717 Turbine speed sensor system A circuit (not inputted)

Circuit description

The transmission revolution sensor (NT) inputs the input shaft revolution speed to the transmission control computer ASSY as a signal.
The transmission control computer ASSY performs shift timing control based on signals from transmission revolution sensor (NT) and transmission revolution sensor (SP2).





Monitor description

This diagnostic code indicates whether pulse is not output from the transmission revolution sensor (NT) or the output is very small. The TCM transmission revolution sensor (NT) terminal detects revolution speed signals from the transmission revolution sensor (NT) (input RPM). TCM compares the transmission revolution sensor (NT) and transmission revolution sensor (SP2) and outputs shift signals.
If the output shaft speed is 550 rpm or more* while the vehicle is driving in D position, TCM detects a defect, turns on MIL, and records the diagnostic code.
*: Engine speed is 400 rpm or more.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





Circuit figure





Inspection steps

NOTE:
Read the freeze frame data using SSM3. Freeze frame data includes a part of the engine operation condition when a trouble occurs and the information helps the troubleshooting.