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Home >> Lexus >> 2021 >> ES 300h Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (A25A-FXS) - Diagnostic Codes (13 Of 20) >> SFI System >> DTC P064A-49: Fuel Pump Control Module Internal Electronic Failure [08/2021 - ] >> Monitor Description

Monitor Description

The fuel pump control ECU has a self-diagnosis function. If there is an internal malfunction, the fuel pump control ECU sends a malfunction signal to the ECM via the FPC drive circuit.

Based on the signal, the ECM judges that there is a malfunction in the fuel pump control ECU stores a DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P064A-49 Fuel Pump Control Module Internal Electronic Failure When the fuel pump control ECU operation duty ratio is 3 to 65%, there is an internal malfunction in the fuel pump control ECU for 3 seconds or more (2 trip detection logic: except Mexico models, 1 trip detection logic: for Mexico models). Fuel pump control ECU
  • Except Mexico models: Comes on
  • Mexico models: Does not come on
DTC stored
  • SAE Code: P064A
  • DTC for Mexico Models: Applies