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Home >> Mazda >> 2023 >> CX-50 S >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN M) >> Engine Coolant Temperature (ECT) Sensor Removal/Installation >> ECT Sensor
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ECT Sensor

  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
  3. Lift up the vehicle.
  4. Remove the front under cover No. 1 and the front under cover No. 2. (See FRONT UNDER COVER No. 1 REMOVAL/INSTALLATION .) (See FRONT UNDER COVER No. 2 REMOVAL/INSTALLATION .)
  5. Disconnect the ECT sensor connector.
  6. Remove the ECT sensor using the SST.
    Fig 1: ECT Sensor With Torque Specification
    G15745840Courtesy of MAZDA MOTORS CORP.
  7. Install in the reverse order of removal.
  8. Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
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