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EC-176 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P0125 ECT SENSOR 2. Select “DATA MONITOR” mode with CONSULT-III. 3. Check that “COOLAN TEMP/S” is above 10 ° C (50 ° F). With GST Follow the procedure “With CONSULT-III” above. Is the temperature above 10 ° C (50 ° F)? YES >> INSPECTION END NO >> GO TO 3. 3. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT-III 1. Start engine and run it for 65 minutes at idle speed. ° C (50 ° F) within 65 minutes, stop engine because the test result will be OK. CAUTION: Never overheat engine. 2. Check 1st trip DTC. With GST Follow the procedure “With CONSULT-III” above. Is 1st trip DTC detected? YES >> NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005536585 1. CHECK GROUND CONNECTION 1. Turn ignition switch OFF. 2. Check ground connection E38. Refer to Ground Inspection in . Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. 2. CHECK ENGINE COOLANT TEMPERATURE SENSOR EC-176, "Component Inspection" Is the inspection result normal? YES >> GO TO 3. NO >> Replace engine coolant temperature sensor. 3. CHECK THERMOSTAT OPERATION When the engine is cold [lower than 70 ° C (158 ° F)] condition, grasp lower radiator hose and confirm that the engine coolant does not flow. Is the inspection result normal? YES >> GO TO 4. NO >> Repair or replace thermostat. Refer to . 4. CHECK INTERMITTENT INCIDENT GI-39, "Intermittent Incident" >> INSPECTION END Component Inspection INFOID:0000000005536586 1. CHECK ENGINE COOLANT TEMPERATURE SENSOR 1. Turn ignition switch OFF. 2. Disconnect engine coolant temperature sensor harness connector. 3. Remove engine coolant temperature sensor. |