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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 179 (Engine Control System (2GR-FSE) - DTC P050B - P2A03, DTC U0101) >> DTC P0607 Control Module Performance >> Description

DTC P0607 Control Module Performance: Description

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM functioning properly. If output from the CPUs are different and deviate from the standards, the ECM will illuminate the MIL and set a DTC immediately.

The ECM also monitors the cruise control cancel circuit. If this circuit malfunctions, the ECM will set a DTC immediately (MIL is not illuminated).

DTC SETTING CONDITION REFERENCE

DTC DTC Setting Condition Trouble Area
P0607
  • ECM main CPU error
  • ECM sub CPU error
  • Cruise control cancel circuit malfunction
ECM