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Home >> Infiniti >> 2000 >> Q45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - Introduction >> Self-Diagnostic System >> Fail-Safe Modes >> DTC P0115: ECT Sensor
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DTC P0115: ECT Sensor

Engine coolant temperature is fixed at 104°F (40°C) when ignition is first turned on, then increases based on engine run time. After 4 minutes, ECT is fixed at 176°F (80°C).