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Home >> Toyota >> 2011 >> Tundra Base, 4.0 U >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (1GR-FE) (Diagnostic Codes P0418-P1605) >> 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) and heated oxygen sensor transistors. This self-check ensures that the ECM is functioning properly. Malfunctions are diagnosed by internal "mirroring" of the main and sub CPUs to detect processor errors. If outputs from the processors deviate from the standard, the ECM will illuminate the MIL and store a DTC immediately.

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