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P0182, P0183 FTT SENSOR EC-265 < COMPONENT DIAGNOSIS > [QR25DE FOR CALIFORNIA] C D E F G H I J K L M A EC N P O P0182, P0183 FTT SENSOR Description INFOID:0000000004349301 The fuel tank temperature sensor is used to detect the fuel tempera- ture inside the fuel tank. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the fuel temper- ature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases. <Reference data> *: These data are reference values and are measured between ECM terminal 95 (Fuel tank temperature sensor) and ground. CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transis- DTC Logic INFOID:0000000004349302 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test. >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON and wait at least 5 seconds. 2. Check 1st trip DTC. YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000004349303 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 Fluid temperature °C (°F)] Voltage* (V) Resistance (k Ω 20 (68) 3.5 2.3 - 2.7 50 (122) 2.2 0.79 - 0.90 SEF012P DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0182 Fuel tank temperature An excessively low voltage from the sensor is • Harness or connectors (The sensor circuit is open or shorted.) • Fuel tank temperature sensor P0183 Fuel tank temperature An excessively high voltage from the sensor is |