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P0181 FTT SENSOR EC-849 < DTC/CIRCUIT DIAGNOSIS > [VK50VE] C D E F G H I J K L M A EC N P O 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. Is 1st trip DTC detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005237325 1. CHECK GROUND CONNECTION 1. Turn ignition switch OFF. 2. Check ground connection M95. Refer to Ground Inspection in Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. 2. CHECK DTC WITH “UNIFIED METER AND A/C AMP.” MWI-45, "CONSULT-III Function (METER/M&A)" . Is the inspection result normal? YES >> GO TO 3. NO >> Go to MWI-61, "Component Function Check" . 3. CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect “fuel level sensor unit and fuel pump (main)” harness connector. 3. Turn ignition switch ON. 4. Check the voltage between “fuel level sensor unit and fuel pump (main)” harness connector and ground. Is the inspection result normal? YES >> GO TO 5. NO >> GO TO 4. 4. DETECT MALFUNCTIONING PART Check the following. >> 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 “unified meter and A/C amp.” harness connector. 3. Check the continuity between “fuel level sensor unit and fuel pump (main)” harness connector and “unified Fuel level sensor unit and fuel pump (main) Ground Voltage (V) Connector Terminal B22 4 Ground Approx. 5 |