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Home >> Lexus >> 2023 >> LX 600 Luxury >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (W/ Canister Pump Module) - Diagnostic Codes (1 Of 9) >> SFI SYSTEM (w/ Canister Pump Module) >> DTC P00B1-11: Radiator Coolant Temperature Sensor Circuit Short to Ground [12/2021 - ] >> Description
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DTC P00B1-11: Radiator Coolant Temperature Sensor Circuit Short to Ground [12/2021 - ]: Description

The No. 2 engine coolant temperature sensor is installed to the radiator pipe between the engine and radiator and monitors the thermostat operation.

The structure of the thermistor used in the No. 2 engine coolant temperature sensor and its connection to the ECM are the same as those of the intake air temperature sensor.

Refer to DTC P00AA-11.

Refer to DTC P00AA-11: Intake Air Temperature Sensor 1 Bank 2 Circuit Short to Ground; DTC P0110-11: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground [12/2021 - ] 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL DTC Output from Priority Note
P00B1-11 Radiator Coolant Temperature Sensor Circuit Short to Ground The No. 2 engine coolant temperature sensor output voltage is less than 0.081 V for 3 seconds or more (1 trip detection logic).
  • Short in No. 2 engine coolant temperature sensor circuit
  • No. 2 engine coolant temperature sensor
  • ECM
Comes on Engine A SAE: P00B3