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EC-226 < DTC/CIRCUIT DIAGNOSIS > [MR18DE] P0181 FTT SENSOR • Harness connectors E8, F1 >> Repair open circuit or short to ground or short to power in harness or connector. 4. CHECK FUEL TANK TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect combination meter harness connector. 3. Check the continuity between “fuel level sensor unit and fuel pump” harness connector and ECM harness 4. Also check harness for short to ground and short to power. Is the inspection result normal? YES >> GO TO 6. NO >> GO TO 5. 5. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit or short to ground or short to power in harness or connector. 6. CHECK FUEL TANK TEMPERATURE SENSOR EC-226, "Component Inspection" Is the inspection result normal? YES >> GO TO 7. NO >> Replace “fuel level sensor unit and fuel pump”. Refer to . 7. CHECK INTERMITTENT INCIDENT GI-40, "Intermittent Incident" >> INSPECTION END Component Inspection INFOID:0000000009947342 1. CHECK FUEL TANK TEMPERATURE SENSOR 1. Turn ignition switch OFF. 2. Disconnect “fuel level sensor unit and fuel pump” harness connector. 3. Remove fuel level sensor unit. Refer to 4. Check resistance between “fuel level sensor unit and fuel pump” terminals by heating with hot water as Is the inspection result normal? YES >> INSPECTION END NO >> Replace “fuel level sensor unit and fuel pump”. Refer to . Fuel level sensor unit and fuel pump Combination meter Continuity Connector Terminal Connector Terminal B40 5 M34 24 Existed Terminals Condition Resistance 4 and 5 Temperature [ ° C ( ° F)] 20 (68) 2.3 - 2.7 k Ω 50 (122) 0.79 - 0.90 k Ω |