SYSTEM DIAGRAM 
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure (P011B62)
DESCRIPTION The engine has two temperature sensors, an engine coolant temperature sensor and an intake air temperature sensor (for mass air flow meter sub-assembly), to detect temperature while the engine is operating. A thermistor, whose resistance value varies according to the temperature, is buil ...
