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EC-230 < COMPONENT DIAGNOSIS > [VQ35HR] P0181 FTT SENSOR P0181 FTT SENSOR Description INFOID:0000000000956615 The fuel tank temperature sensor is used to detect the fuel tempera- *: These data are reference values and are measured between ECM terminal 106 (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:0000000000956616 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE-I 1. Turn ignition switch ON and wait at least 10 seconds. 2. Check 1st trip DTC. Is 1st trip DTC detected? YES >> Go to NO >> GO TO 3. 3. CHECK ENGINE COOLANT TEMPERATURE With CONSULT-III 1. Select “COOLAN TEMP/S” in “DATA MONITOR” with CONSULT-III. 2. Check “COOLAN TEMP/S” value. With GST Follow the procedure “With CONSULT-III” above. “COOLAN TEMP/S” less than 60 ° C (140 ° F)? YES >> INSPECTION END NO >> GO TO 4. 4. PERFORM DTC CONFIRMATION PROCEDURE-II With CONSULT-III 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 P0181 Fuel tank temperature Rationally incorrect voltage from the sensor is • Harness or connectors (The sensor circuit is open or shorted) • Fuel tank temperature sensor |