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DTC P0606: ECM / PCM Processor: Description

WARNING: This page is about a different car, the 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

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

DTC DTC Setting Condition Trouble Area
P0606
  • ECM CPUs malfunction
  • Heated oxygen sensor transistors (built into the ECM) malfunction
  • ECM
  • Heated oxygen sensor
  • Exhaust gas leak