LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2018 >> LS 500 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System - Diagnostic Codes (03 Of 14) >> SFI System >> DTC P011A-62: Engine Coolant Temperature Sensor 1/2 Signal Compare Failure; DTC P111A-62: Engine Coolant Temperature Sensor 1/3 Signal Compare Failure [12/2017 - ] >> Monitor Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Monitor Description

P011A-62: 

After the engine has stopped for 5 hours or more, the ECM monitors the voltage of the engine coolant temperature sensor (for outlet side) and engine coolant temperature sensor (for cylinder head side). If the difference between the readings of the engine coolant temperature (for outlet side) and engine coolant temperature sensor (for cylinder head side) is higher than 20°C (36°F), the ECM determines that there is a malfunction in the engine coolant temperature sensor (for outlet side) circuit or engine coolant temperature sensor (for cylinder head side) circuit, and stores a DTC and illuminates the MIL.

P111A-62: 

After the engine has stopped for 5 hours or more, the ECM monitors the voltage of the engine coolant temperature sensor (for outlet side) and engine coolant temperature sensor (for inlet side). If the difference between the readings of the engine coolant temperature (for outlet side) and engine coolant temperature sensor (for inlet side) is higher than 20°C (36°F), the ECM determines that there is a malfunction in the engine coolant temperature sensor (for outlet side) circuit or engine coolant temperature sensor (for inlet side) circuit, and stores a DTC and illuminates the MIL.