Function Explanation (DTC Detection Outline)
WARNING: This page is about a different variant/trim than selected.
- If the engine coolant temperature detected by the ECT sensor is not rising 3 °C {5 °F} or more during a 5 min period after the engine is started, the PCM determines an ECT sensor malfunction and stores a DTC.
 Courtesy of MAZDA MOTORS CORP.
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