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DTC P0117, P0118 ECT SENSOR EC-175 C D E F G H I J K L M A EC Revision: 2004 November 2004 Murano DTC P0117, P0118 ECT SENSOR PFP:22630 Component Description ABS004CR The engine coolant temperature sensor is used to detect the engine <Reference data> *: This data is reference value and is measured between ECM terminal 73 (Engine CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam- On Board Diagnosis Logic ABS004CS These self-diagnoses have the one trip detection logic. FAIL-SAFE MODE When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up. SEF594K Engine coolant temperature ° C ( ° F) Voltage* V Resistance k Ω − 10 (14) 4.4 7.0 - 11.4 20 (68) 3.5 2.1 - 2.9 50 (122) 2.2 0.68 - 1.00 90 (194) 0.9 0.236 - 0.260 SEF012P DTC No. Trouble Diagnosis Name DTC Detecting Condition Possible Cause P0117 Engine coolant tem- An excessively low voltage from the sensor is ● Harness or connectors ● Engine coolant temperature sensor P0118 Engine coolant tem- An excessively high voltage from the sensor is Detected items Engine operating condition in fail-safe mode Engine coolant temper- ature sensor circuit Engine coolant temperature will be determined by ECM based on the time after turning ignition switch ON Condition Engine coolant temperature decided (CONSULT-II display) Just as ignition switch is turned ON or Start 40 ° C (104 ° F) More than approx. 4 minutes after ignition ON or 80 ° C (176 ° F) Except as shown above 40 - 80 ° C (104 - 176 ° F) (Depends on the time) When the fail-safe system for engine coolant temperature sensor is activated, the cooling fan operates |