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Home >> Scion >> 2011 >> xB Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0420-P1603) >> SFI System >> DTC P0607: Control Module Performance >> Monitor Description
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Monitor Description

The ECM continuously monitors its internal processors (CPUs) and Heated Oxygen (HO2) 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
  • Exhaust gas leak
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