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P0117, P0118 ENGINE COOLANT TEMPERATURE SENSOR 1 EC-861 < DTC/CIRCUIT DIAGNOSIS > [MR EXCEPT FOR NISMO RS MODELS] C D E F G H I J K L M A EC N P O 4. Also check harness for short to ground to power. YES >> GO TO 3. NO >> Repair or replace error-detected parts. 3. CHECK ENGINE COOLANT TEMPERATURE SENSOR 1 Check the engine coolant temperature sensor 1. Refer to EC-861, "Component Inspection (Engine Coolant . Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-45, "Intermittent Incident" . NO >> Replace engine coolant temperature sensor 1. Refer to 4. CHECK ENGINE COOLANT TEMPERATURE SENSOR 1 POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between ECT sensor 1 harness connector and ECM harness connector. 4. Also check harness for short to ground. YES >> Perform the trouble diagnosis for power supply circuit. NO >> Repair or replace error-detected parts. Component Inspection (Engine Coolant Temperature Sensor 1) INFOID:0000000012198369 1. CHECK ENGINE COOLANT TEMPERATURE SENSOR 1 1. Turn ignition switch OFF. 2. Disconnect engine coolant temperature sensor 1 harness connector. 3. Remove engine coolant temperature sensor 1. 4. Check resistance between engine coolant temperature sensor 1 terminals by heating with hot water as shown in the figure. Is the inspection result normal? YES >> INSPECTION END NO >> Replace engine coolant temperature sensor 1. Refer to + − Continuity ECT sensor 1 ECM Connector Terminal Connector Terminal F50 2 F23 45 Existed + − Continuity ECT sensor 1 ECM Connector Terminal Connector Terminal F50 1 F23 35 Existed ECT sensor 1 Condition Resistance + − Terminal 1 2 Temperature [ °C (°F)] 20 (68) 2.37 - 2.63 k Ω 50 (122) 0.68 - 1.00 k Ω 90 (194) 0.236 - 0.260 k Ω JMBIA0080ZZ |