DTC P00B1-62: Radiator Coolant Temperature Sensor Signal Compare Failure [08/2021 - ]: Description

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This engine uses a No. 2 engine coolant temperature sensor and an intake air temperature sensor to detect temperatures related to engine operation. A thermistor, whose resistance value varies according to the temperature, is built into each sensor. When the temperature becomes low, the resistance of the thermistor increases. When the temperature becomes high, the resistance decreases. These variations in resistance are transmitted to the ECM as voltage changes.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Memory	Note
P00B1-62	Radiator Coolant Temperature Sensor Signal Compare Failure	All of the following conditions are met (2 trip detection logic): The auxiliary battery voltage is 10.5 V or higher. 7 hours or more have elapsed since the power switch was turned off in the previous trip. Less than 20 seconds since a cold engine start was performed. The intake air temperature is -10°C (14°F) or higher. The difference between the readings of the No. 2 engine coolant temperature and intake air temperature is higher than 25°C (45°F).	Mass air flow meter sub-assembly (intake air temperature sensor) No. 2 engine coolant temperature sensor ECM	Comes on	DTC stored	SAE Code: P00B2 DTC for Mexico Models: Does not apply