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EC-232 < COMPONENT DIAGNOSIS > [QR25DE] P0181 FTT SENSOR NO >> GO TO 4. 4. PERFORM DTC CONFIRMATION PROCEDURE-II With CONSULT-III 1. Cool engine down until “COOLAN TEMP/S” is less than 60 °C (140°F). 2. Wait at least 10 seconds. 3. Check 1st trip DTC. With GST Follow the procedure “With CONSULT-III” above. YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000004211467 1. CHECK GROUND CONNECTION 1. Turn ignition switch OFF. 2. Check ground connection E9. Refer to Ground Inspection in . Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. 2. CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT 1. Disconnect “fuel level sensor unit and fuel pump” harness connector. 2. Turn ignition switch ON. 3. Check the voltage between “fuel level sensor unit and fuel pump” harness connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. • Harness connectors E29, B10 • Harness for open or short between ECM and “fuel level sensor unit and fuel pump” >> 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. Check the continuity between “fuel level sensor unit and fuel pump” harness connector and ECM harness connector. 3. Also check harness for short to ground and short to power. YES >> GO TO 6. NO >> GO TO 5. Fuel level sensor unit and fuel pump Ground Voltage Connector Terminal B42 4 Ground Approx. 5V PBIB0932E Fuel level sensor unit and fuel pump ECM Continuity Connector Terminal Connector Terminal B42 5 E10 104 Existed |