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DTC P0667-00: Ecu Internal Temperature Sensor/Performance Problem: Notes

DTC P0667:00 ECU internal temperature sensor/performance problem
DETECTION CONDITION 
  • Under the following conditions, the difference between ECU internal temperatures of three ECU internal temperature sensors are 15 °C {27 °F} or more  :
    • Engine is running.
    • Soaked for 6 hours or more  .
    • No malfunction in ECU internal temperature sensor circuit
FAIL-SAFE FUNCTION 
  • Inhibits learning control.
  • Inhibits neutral idle control.
POSSIBLE CAUSE 
  • Control valve body malfunction
    • ECU internal temperature sensor (built-into TCM) malfunction
SYSTEM WIRING DIAGRAM  Not applicable