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Home >> Toyota >> 2012 >> Highlander Limited, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0365-P1605)) (2GR-FE) >> SFI System >> DTC P0607: Control Module Performance >> Description
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DTC P0607: Control Module Performance: Description

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

DTC No. DTC Setting Condition Trouble Area
P0607 Both of the following conditions are met (1 trip detection logic)
  • ECM CPUs malfunction
  • Heated oxygen sensor transistors (built into ECM) malfunction
  • Exhaust gas leak
  • Heated oxygen sensor
  • ECM