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Home >> Infiniti >> 2003 >> M45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Self-Diagnostic System >> Fail-Safe Modes >> DTC P0117 & P0118: ECT Sensor
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DTC P0117 & P0118: ECT Sensor

NOTE: When the fail-safe system for ECT sensor is activated, the cooling fan operates while engine is running.

Engine coolant temperature will be determined by ECM based on the time after turning ignition switch "ON" or "START". CONSULT-II displays the engine coolant temperature decided by ECM. See ENGINE COOLANT TEMPERATURE CONDITION  table.

ENGINE COOLANT TEMPERATURE CONDITION

Condition (1) Engine Coolant Temperature Decided
Just As Ignition Switch Is Turned ON Or Start 104°F (40°C)
More Than About 4 Minutes After Ignition ON Or Start 176°F (80°C)
Except As Shown Above 104-176°F (40-80°C) (Depends On The Time)
(1) Engine coolant temperatures that are shown are from the CONSULT-II Display.