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Home >> Lexus >> 2019 >> GS 300 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (5 Of 5) >> SFI System >> DTC P0115-2A: Engine Coolant Temperature Sensor 1 Signal Stuck in Range [10/2015 - 09/2016] >> Typical Enabling Conditions

Typical Enabling Conditions

ALL

Monitor runs whenever the following DTCs are not stored None
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 900 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 (for mass air flow meter sub-assembly) 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 10558 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