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EC-272 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P0181 FTT SENSOR 4. Check the voltage between “fuel level sensor unit and fuel pump” harness connector and ground. Is the inspection result normal? YES >> GO TO 5. NO >> GO TO 4. 4. DETECT MALFUNCTIONING PART Check the following. • Harness connectors B10, E29 • Harness for open or short between ECM and “fuel level sensor unit and fuel pump” >> Repair open circuit, short to ground or short to power in harness or connector. 5. CHECK FUEL TANK TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between “fuel level sensor unit and fuel pump” harness connector and ECM harness connector. 4. Also check harness for short to ground and short to power. YES >> GO TO 7. NO >> GO TO 6. 6. DETECT MALFUNCTIONING PART Check the following. • Harness connectors B1, M6 • Harness connectors E30, M1 • Harness for open or short between “fuel level sensor unit and fuel pump” and ECM >> Repair open circuit, short to ground or short to power in harness or connector. 7. CHECK FUEL TANK TEMPERATURE SENSOR EC-272, "Component Inspection" Is the inspection result normal? YES >> GO TO 8. NO >> Replace “fuel level sensor unit and fuel pump”. Refer to FL-6, "Removal and Installation" . 8. CHECK INTERMITTENT INCIDENT GI-41, "Intermittent Incident" >> INSPECTION END Component Inspection INFOID:0000000010094965 1. CHECK FUEL TANK TEMPERATURE SENSOR 1. Turn ignition switch OFF. Fuel level sensor unit and fuel pump Ground Voltage Connector Terminal B42 4 Ground Approx. 5 V PBIB0932E Fuel level sensor unit and fuel pump ECM Continuity Connector Terminal Connector Terminal B42 5 E10 104 Existed |