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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 P0606-47: Control Module Processor Watchdog/Safety MCU Failure [08/2021 - ] >> Monitor Description

Monitor Description

The ECM continuously monitors its main CPU and monitor IC. This self-check ensures that the ECM is functioning properly. If outputs from main CPU and monitor IC are different and deviate from the standard, the ECM will illuminate the MIL and store this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0606-47 Control Module Processor Watchdog/Safety MCU Failure ECM main CPU malfunction (1 trip detection logic). ECM Comes on DTC stored
  • SAE Code: P0606
  • DTC for Mexico Models: Applies