Mazda 3 manuals

Mazda 3 Owners Manual: Vehicle Engine Control Unit Reset Procedure

Mazda 3 Owners Manual / Maintenance and Care / Owner Maintenance / Engine Oil / Vehicle Engine Control Unit Reset Procedure

NOTE This procedure is intended for vehicles with the engine oil flexible maintenance setting selected.

After replacing the engine oil, have a repair shop such as an Authorized Mazda Dealer perform the initialization (engine oil data resetting) of the recorded value. If the value recorded by the computer is not initialized, the wrench indicator light may not turn off or it may turn on earlier than normal.

NOTE The initialization (engine oil data resetting) of the recorded value can be performed using the following procedure:

  1. Switch the ignition OFF.
  2. Switch the ignition ON with the selector pressed, and press and hold the selector for about 5 seconds until the master warning light flashes.

Mazda 3. Vehicle Engine Control Unit Reset Procedure


  1. After the master warning light flashes for several seconds,
    the initialization is completed.
Recommended Oil
U.S.A., Canada, and Puerto Rico Use SAE 0W-20 engine oil. Mazda Genuine Oil is used in your Mazda vehicle. Mazda Genuine 0W-20 Oil is required to achieve optimum fuel economy. For maintenanc ...

Inspecting Engine Oil Level
Be sure the vehicle is on a level surface. Warm up the engine to normal operating temperature. Turn it off and wait at least 5 minutes for the oil to return to the oil pan. Pull out the ...

Other materials:

Bright-Metal Maintenance
Use tar remover to remove road tar and insects. Never do this with a knife or similar tool. To prevent corrosion on brightmetal surfaces, apply wax or chrome preservative and rub it to a high luster. During cold weather or in coastal areas, cover bright-metal parts with a coating ...

Rear Stabilizer Control Link Inspection
1. Remove the rear stabilizer control link from the vehicle.. 2. Inspect for bending or damage. If there is any malfunction, replace the rear stabilizer control link. 3. Rotate the ball joint stud 10 times and shake it side to side 10 times. 4. Measure the ball joint rotational torque usin ...

Quick Release Connector (Emission System) Removal/Installation [Mzr 2.0, Mzr 2.5]
Quick Release Connector Type CAUTION: Verify the type and location, and install/remove properly. Except for Mexico Mexico Type A Removal CAUTION: Be careful not to damage the evaporative pipe when unlocking the retainer. NOTE: When removing the quick r ...

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