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Home >> Toyota >> 2011 >> Camry Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 436 (Automatic Transaxle (U660E) (Diagnostic Codes & Circuit Tests) (Except Hybrid)) >> Automatic Transaxle System >> DTC P0711: Transmission Fluid Temperature Sensor "A" Performance >> Description

DTC P0711: Transmission Fluid Temperature Sensor "A" Performance: Description

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The Automatic Transmission Fluid (ATF) temperature sensor converts the fluid temperature into a resistance value for use by the TCM.

Fig 1: Temperature And Resistance Graph
GTY186998Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

The TCM applies a voltage to the temperature sensor through terminal THO1 of the TCM.

The sensor resistance changes with the transmission fluid temperature. As the temperature becomes higher, the sensor resistance decreases.

One terminal of the sensor is grounded so that the sensor resistance decreases and the voltage goes down as the temperature becomes higher.

The TCM calculates the fluid temperature based on the voltage signal.

DTC No. DTC Detection Condition Trouble Area
P0711 One of the following conditions (A), (B) or (C) is met:
(A) (a), (b) and (c) are detected: (2-trip detection logic)
  • (a) Intake air and engine coolant temperatures are more than 15°C (59°F) at engine start
  • (b) Soak time is more than 5 hours
  • (c) After normal driving for over 10 min. and 5 km (3 mile) or more, ATF temperature is less than 20°C (68°F)

(B) Both (a) and (b) are detected: (2-trip detection logic)
  • (a) Intake air and engine coolant temperatures are more than -10°C (14°F) at engine start
  • (b) After normal driving for over 18 min. and 20 sec. and 8 km (5 mile) or more, ATF temperature is less than 20°C (68°F)

(C) Both (a) and (b) are detected: (2-trip detection logic)
  • (a) Engine coolant temperature is less than 35°C (95°F) at engine start
  • (b) ATF temperature is 110°C (230°F) or more when engine coolant temperature reaches 60°C (140°F)
ATF temperature sensor