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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 450 (Automatic Transmission - Diagnosis) >> Circuit Inspection >> DTC P0710: Transmission Fluid Temperature Sensor "A" Circuit; DTC P0712: Transmission Fluid Temperature Sensor "A" Circuit Low Input; DTC P0713: Transmission Fluid Temperature Sensor "A" Circuit High Input >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

The ATF temperature sensor converts fluid temperature into a resistance value which is input into the ECM.

DTC CONDITION DETECTION CHART

DTC No. DTC Detecting Condition Trouble Area
P0710 (a) and (b) is detected momentary within 0.5 sec. when neither P0712 or P0713 is not detected (1-trip detection logic)
  1. ATF temperature sensor resistance is less than 79 Ω.
  2. ATF temperature sensor resistance is more than 156 Ω.

    HINT:

    Within 0.5 sec. the malfunction switches from (a) to (b) or from (b) to (a)
  • Open or short in ATF temperature sensor circuit
  • ATF temperature sensor
  • ECM
P0712 ATF temperature sensor resistance is less than 79° for 0.5 sec. or more (1-trip detection logic)
P0713 DTC is detected for 0.5 sec. or more (1-trip detection logic) ATF temperature sensor resistance is more than 156 kΩ after started engine for 15 minutes or more
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