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Home >> Lexus >> 2009 >> IS 250 RWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS P0420 - U0101 & Circuit Tests) >> SFI System >> DTC P0606: ECM / PCM Processor >> Description
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DTC P0606: ECM / PCM Processor: Description

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