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Home >> Lexus >> 2023 >> LC 500 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (Convertible) (4 Of 7) >> SFI System >> DTC P0462: Fuel Level Sensor "A" Circuit Low; DTC P0463: Fuel Level Sensor "A" Circuit High [07/2020 - ] >> Description
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DTC P0462: Fuel Level Sensor "A" Circuit Low; DTC P0463: Fuel Level Sensor "A" Circuit High [07/2020 - ]: Description

The fuel sender gauge is located inside the fuel tank and measures the amount of fuel. The fuel sender gauge converts the fuel level in the fuel tank into a voltage value and outputs it to the combination meter assembly. The ECM determines when it is necessary to refuel the vehicle based on changes in the output value of the fuel sender gauge.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0462 Fuel Level Sensor "A" Circuit Low Fuel sender gauge output voltage is less than 0.25 V for 30 seconds or more (2 trip detection logic).
  • Open or short in fuel sender gauge circuit
  • Fuel sender gauge assembly
  • Combination meter assembly
  • Fuel suction tube with pump and gauge assembly
  • ECM
Comes on DTC stored
P0463 Fuel Level Sensor "A" Circuit High Fuel sender gauge output voltage is higher than 4.73 V for 30 seconds or more (2 trip detection logic).
  • Open or short in fuel sender gauge circuit
  • Fuel sender gauge assembly
  • Combination meter assembly
  • Fuel suction tube with pump and gauge assembly
  • ECM
Comes on DTC stored