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P0197, P0198 EOT SENSOR EC-321 < DTC/CIRCUIT DIAGNOSIS > [MR 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. YES >> Perform the trouble diagnosis for power supply circuit. NO >> Repair or replace error-detected parts. 3. CHECK EOT SENSOR GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between EOT sensor harness connector and ECM harness connector. 4. Also check harness for short to power. YES >> GO TO 4. NO >> Repair or replace error-detected parts. 4. CHECK ENGINE OIL TEMPERATURE SENSOR Check the engine oil temperature sensor. Refer to EC-318, "Component Inspection" . Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-45, "Intermittent Incident" . NO >> Replace engine oil temperature sensor. Refer to . Component Inspection INFOID:0000000012197866 1. CHECK ENGINE OIL TEMPERATURE SENSOR 1. Turn ignition switch OFF. 2. Disconnect engine oil temperature sensor harness connector. 3. Remove engine oil temperature sensor. 4. Check resistance between engine oil temperature sensor termi- nals by heating with hot water as shown in the figure. Is the inspection result normal? YES >> INSPECTION END NO >> Replace engine oil temperature sensor. Refer to . + − Continuity EOT sensor ECM Connector Terminal Connector Terminal F43 3 F25 39 Existed + − Continuity EOT sensor ECM Connector Terminal Connector Terminal F43 1 F25 44 Existed Engine oil temperature sensor Condition Resistance (k Ω) + − Terminal 1 2 Temperature °C (°F)] 20 (68) 2.37 - 2.63 50 (122) 0.68 - 1.00 90 (194) 0.236 - 0.260 JMBIA0080ZZ |