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Home >> Mazda >> 2021 >> CX-3 AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> On-Board Diagnostics - Transaxle >> DTC P0667-00: Ecu Internal Temperature Sensor/Performance Problem (TCM) >> Notes

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

DTC P0667:00 (TCM) DETECTION CONDITION AND POSSIBLE CAUSE

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 {59°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