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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission System (UA80F) - Diagnostic Codes (1 Of 2) >> Automatic Transaxle System >> DTC P0715-12: Input/Turbine Speed Sensor "A" Circuit Short to Battery; DTC P0715-14: Input/Turbine Speed Sensor "A" Circuit Short to Ground or Open; DTC P0715-31: Input/Turbine Speed Sensor "A" No Signal [12/2019 - 10/2022] >> Description

DTC P0715-12: Input/Turbine Speed Sensor "A" Circuit Short to Battery; DTC P0715-14: Input/Turbine Speed Sensor "A" Circuit Short to Ground or Open; DTC P0715-31: Input/Turbine Speed Sensor "A" No Signal [12/2019 - 10/2022]: Description

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

Based on the transmission revolution sensor (NT) signal and the transmission revolution sensor (NC) signals, the ECM 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 Note
P0715-12 Input/Turbine Speed Sensor "A" Circuit Short to Battery All of the following conditions are met (1-trip detection logic):
  • The battery voltage is 8 V or more.
  • The ignition switch is ON.
  • The starter is off.
  • Transmission revolution sensor (NT) input voltage is more than 1.9 V for 4.5 seconds.
  • Transmission revolution sensor (NT)
  • Transmission wire
  • Harness and connector
  • ECM
 Comes on DTC stored SAE Code:
P07C0
P0715-14 Input/Turbine Speed Sensor "A" Circuit Short to Ground or Open All of the following conditions are met (1-trip detection logic):
  • The battery voltage is 8 V or more.
  • The ignition switch is ON.
  • The starter is off.
  • Transmission revolution sensor (NT) input voltage is less than 0.1 V for 4.5 seconds or more.
  • Transmission revolution sensor (NT)
  • Transmission wire
  • Harness and connector
  • ECM
 Comes on DTC stored SAE Code:
P07BF
P0715-31 Input/Turbine Speed Sensor "A" No Signal All of the following conditions are met (1-trip detection logic):
  • The battery voltage is 8 V or more.
  • The park/neutral position switch D input signal is ON.
  • The speed indicated by transmission revolution sensor (NC) is 490 rpm or more.
  • The vehicle speed is 24 km/h (15 mph) or more.
  • The vehicle is being driven in 1st, 2nd, 3rd, 4th, 5th, 6th, 7th or 8th gear.
  • The speed indicated by transmission revolution sensor (NT) is less than 300 rpm for 5 seconds or more.
  • Transmission revolution sensor (NT)
  • Transmission wire
  • Harness and connector
  • ECM
 Comes on DTC stored SAE Code:
P0717
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