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DTC P0181 FTT SENSOR EC-839 [VG33E] C D E F G H I J K L M A EC Diagnostic Procedure UBS00DJ2 1. CHECK FUEL TANK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect fuel level sensor unit harness connector. 3. Turn ignition switch ON. 4. Check voltage between fuel level sensor unit terminal T and OK or NG OK >> GO TO 3. NG >> GO TO 2. 2. DETECT MALFUNCTIONING PART Check the following. ● Harness connectors C1, M67 ● Harness connectors M81, F36 ● Harness for open or short between ECM and fuel tank temperature sensor >> Repair harness or connector. 3. CHECK FUEL TANK TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Check harness continuity between fuel level sensor unit terminal E and body ground. Refer to Wiring Dia- 3. Also check harness for short to power. OK or NG OK >> GO TO 5. NG >> GO TO 4. 4. DETECT MALFUNCTIONING PART Check the following. ● Harness for open between fuel tank temperature sensor and body ground ● Harness connectors C1, M67 >> Repair open circuit or short to power in harness or connectors. LEC764 Voltage: Approximately 5V SEC310C Continuity should exist. |