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Home >> Toyota >> 2015 >> Prius One >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Control System (Diagnostic Codes (P0300-P0657)) (Except Plug-In)) >> SFI System >> DTC P0607: Control Module Performance [08/2014 - ] >> Monitor Description
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Monitor Description

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

DTC No. DTC Detection Condition Trouble Area
P0607 Either of the following conditions is met (1 trip detection logic):
  • ECM CPUs malfunction
  • Heated oxygen sensor transistor (built into the ECM) malfunctions
  • Exhaust gas leak
  • Heated oxygen sensor
  • ECM