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Home >> Mazda >> 2021 >> 6 Signature >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Control System (VIN Y)) >> Engine Coolant Temperature (ECT) Sensor Inspection >> Function Inspection

Function Inspection

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  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 .) (See PCM INSPECTION .)
  4. Compare the voltage and temperature indications for the PID ECT with the standard in the table indicated below.

Standard 

VOLTAGE SPECIFICATION

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