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DTC P0117, P0118 ECT SENSOR EC-193 < SERVICE INFORMATION > [VQ35DE] C D E F G H I J K L M A EC N P O DTC P0117, P0118 ECT SENSOR Component Description INFOID:0000000001326013 The engine coolant temperature (ECT) sensor is used to detect the <Reference data> *: This data is reference values 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 INFOID:0000000001326014 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 circuit is • Engine coolant temperature sensor P0118 Engine coolant tem- An excessively high voltage from the sensor is |