DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal [09/2014 - 11/2017]: Description

WARNING: This page is about a different car, the 2017 Lexus RC 350, 2016 Lexus RC 350, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.

The transmission revolution sensor (NT) detects the input shaft rotation speed and sends it to the TCM.

Based on the transmission revolution sensor (NT) signal and the transmission revolution sensor (NC3 and SP2) signals, the TCM 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
P0715	Input / Turbine Speed Sensor Circuit Malfunction	1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other +B voltage is 10 V or more, and transmission revolution sensor (NT) signal malfunction is not detected Transmission revolution sensor (NT) input voltage is less than 0.1 V, or more than 1.9 V 4.5 seconds 1-trip detection logic	Transmission revolution sensor (NT) Transmission wire Harness and connector TCM	Comes on	DTC stored
P0717	Input Speed Sensor Circuit No Signal	1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other When shifting between 2nd and 8th gear, output wheel rotation speed is 1000 rpm or more, and +B voltage is 10 V or more. Park/neutral position switch assembly and transmission revolution sensor (NT) are normal. Transmission revolution sensor (NT) value is less than 300 rpm 5 seconds 1-trip detection logic	Transmission revolution sensor (NT) Transmission wire Harness and connector TCM	Comes on	DTC stored