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Home >> Toyota >> 2012 >> Yaris L, 2D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Hatchback) (Diagnostic Codes P0420-P1605) >> SFI SYSTEM (for Hatchback) >> DTC P0607: Control Module Performance >> Monitor Description

Monitor Description

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
  • The ECM CPUs malfunction.
  • The heated oxygen sensor transistor (built into the ECM) malfunctions.
  • ECM
  • Heated oxygen sensor (bank 1 sensor 2)
  • Exhaust gas leak
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