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Home >> Mazda >> 2024 >> CX-90 Turbo Select >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Control System (VIN A) (1 Of 2)) >> Engine Coolant Temperature (ECT) Sensor Removal/Installation [001] >> Perform Engine Coolant (Main) Air Bleeding (With e-SKYACTIV PHEV)

Perform Engine Coolant (Main) Air Bleeding (With e-SKYACTIV PHEV)

WARNING: This page is about a different variant/trim than selected.
  1. Perform the following procedure switch to compulsory engine start mode.
    1. Switch the ignition ON (Ready off) under the following conditions.
      • Shift position: P position
      • Brake pedal: Not depressed
    2. Depress and release the accelerator pedal 5 times with the brake pedal depressed.
    3. Release the brake pedal and depress the accelerator pedal again the same number of times.
    4. Depress the accelerator pedal the same number of times again while depressing the brake pedal again.
    5. Release the brake pedal.
    6. When the output limit warning light flashes 5 times, the preparation to switch to maintenance mode is competed.
      • If the output limit warning light does not flash because the transition to maintenance mode has failed, switch the ignition OFF and verify if the implementation permit conditions are met. If there is no problem, repeat the procedure from Step  1. (See MAINTENANCE MODE .)
      NOTE:
      • When the preparation for switching to maintenance mode is completed, maintenance mode is not completed even if the ignition is switched OFF.
      • The mode returns to the transition preparation completion status by switching the ignition ON again after switching the ignition OFF.
    7. Depress the brake pedal again and switch the main power ON to switch to the desired mode.
  2. Perform the engine coolant (main) air bleeding using the following procedure.
    1. Maintain the engine speed at approx. 2, 000 rpm for 5 min.
    2. Maintain the engine speed at approx. 2, 000 rpm for 10 s.
    3. Maintain idling for 30 s.
    4. Repeat Steps  2 and  3 5 times.
    5. Maintain the engine speed at approx. 3, 000 rpm for 10 s.
    6. Maintain idling for 30 s.
    7. Repeat Steps  5 and  6 5 times.
    8. Increase the engine speed to approx. 4, 000 rpm, and then idle.
    9. Maintain the engine speed at approx. 2, 000 rpm for 10 s.
    10. Maintain idling for 30 s.
    11. Repeat Steps  2 to  10 until the air is bled out.
  3. Stop the engine and wait until the engine coolant (main) temperature decreases.
  4. If the engine coolant (main) level is low, add engine coolant (main) and inspect the coolant amount.
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