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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Automatic Transaxle) >> Automatic Transmission System >> DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal >> Description

DTC P0715: Input / Turbine Speed Sensor Circuit Malfunction; DTC P0717: Input Speed Sensor Circuit No Signal: Description

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

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

Based on the transmission speed sensor (NT) signal and the transmission speed sensor (NC3 and SP2) signal, the TCM controls engine torque and shift timing Also, based on the input shaft rotation speed and the engine rpm signal, lock-up control is performed.

Fig 1: Sectional View Of Front Planetary Assembly
G04948295Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC DETECTION CONDITION AND TROUBLE AREA

DTC Code DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
 Trouble Area
P0715
  1. +B voltage is 10 V or more, and speed sensor (NT) signal malfunction is not detected
  2. Speed sensor (NT) input voltage is less than 0 1 V, or more than 19V
  3. 45 seconds
  4. 1 trip detection logic
  • Speed sensor (NT)
  • Transmission wire
  • Harness and connector
  • TCM
P0717
  1. When shifting between 2nd and 8th gear, output wheel rotation speed is 1000 rpm or more, and +B voltage is 10 V or more PNP switch and speed sensor (NT) are normal
  2. Speed sensor (NT) value is less than 300 rpm
  3. 5 seconds
  4. 1 trip detection logic
  • Speed sensor (NT)
  • Transmission wire
  • Harness and connector
  • TCM
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