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Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (W/ Canister Pump Module) - Diagnostic Codes (2 Of 9) >> SFI SYSTEM (w/ Canister Pump Module) >> DTC P0115-2A: Engine Coolant Temperature Sensor 1 Signal Stuck in Range [12/2021 - ] >> Typical Enabling Conditions

Typical Enabling Conditions

COLD START MONITOR

All of the following conditions are met -
Battery voltage 10.5 V or higher
Time after engine start 1 second or more
Engine coolant temperature at engine start Less than 60°C (140°F)
Soak time 0 second or more
Accumulated mass air flow 12302 g or more
Engine Running
Fuel cut Off
Intake air temperature sensor circuit fail (P0112, P0113) Not detected
Engine coolant temperature sensor circuit fail (P0117, P0118) Not detected
Difference between engine coolant temperature at engine start and intake air temperature Less than 40°C (72°F)
SOAK MONITOR

All of the following conditions are met -
Battery voltage 10.5 V or higher
Engine Running
Soak time 5 hours or more
Either of the following conditions is met 1 or 2
1. Engine coolant temperature 60°C (140°F) or higher
2. Accumulated mass air flow 24604 g or more
Intake air temperature sensor circuit fail (P0112, P0113) Not detected
Engine coolant temperature sensor circuit fail (P0117, P0118) Not detected
Soak timer fail (P2610) Not detected