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Home >> Mazda >> 2012 >> 3 s Touring, 4D Hatchback, 2.5L Eng VIN 9, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [MZR 2.0, MZR 2.5] >> Engine Coolant Temperature (ECT) Sensor Removal/Installation >> ECT Sensor No.1
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ECT Sensor No.1

  1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .)
  2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .)
  3. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
  4. Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .)
  5. Disconnect the ECT sensor No.1 connector.
  6. Remove the ECT sensor No.1 using the SST  .
    Fig 1: ECT Sensor No.1 And SST With Torque Specifications
    G08155391
  7. Install in the reverse order of removal.
  8. Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
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