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Home >> Mazda >> 2021 >> CX-30 Turbo Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 138 (Engine Control System (VIN Y)) >> Engine Coolant Temperature (ECT) Sensor Removal/Installation >> ECT Sensor No. 1

ECT Sensor No. 1

WARNING: This page is about a different car, the 2021 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  2. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
  3. Remove the following parts:
    1. Plug hole plate (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
    2. Battery (See BATTERY REMOVAL/INSTALLATION .)
    3. Battery tray (See BATTERY REMOVAL/INSTALLATION .)
    4. Air inlet pipe (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  4. Disconnect the ECT sensor No. 1 connector.
  5. Remove the ECT sensor No. 1 using the SST.
    Fig 1: Engine Coolant Temperature Sensor No. 1 With Torque Specification
    G13714464Courtesy of MAZDA MOTORS CORP.
  6. Install in the reverse order of removal.
  7. Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
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