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Home >> Mazda >> 2021 >> CX-5 Signature >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN Y) >> Engine Coolant Temperature (ECT) Sensor Inspection >> Function inspection
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Function inspection

  1. Connect the M-MDS to the DLC-2.
  2. Switch the ignition ON (engine off).
  3. Display the PID ECT. (See ON-BOARD DIAGNOSTIC TEST [PCM (VIN Y)] .) (See PCM INSPECTION .)
  4. Compare the voltage and temperature indications for the PID ECT with the standard in the table indicated below.

Standard 

ECT
V °C {°F}
Approx. 2.65 29 {84}
Approx. 0.71 88 {190}