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Home >> Lexus >> 2021 >> NX 300h Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (5 Of 6) >> SFI System >> DTC P0607: Control Module Performance [10/2014 - ] >> Monitor Description
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Monitor Description

The ECM continuously monitors its internal processors (CPUs) and heated oxygen sensor transistors. This self-check ensures that the ECM functioning properly.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0607 Control Module Performance Either condition is met (1 trip detection logic):
  • ECM CPUs malfunction
  • Heated oxygen sensor transistor (built into ECM) malfunction
  • ECM
  • Heated oxygen sensor (sensor 2)
  • Exhaust gas leak
Comes on DTC stored