Vehicle Engine Control Unit Reset Procedure
After replacing the engine oil, it is recommended to have a repair shop such as an Authorised Mazda Repairer 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.
The initialization (engine oil data resetting) of the recorded value can be performed using the following procedure:
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Switch the ignition OFF.
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Switch the ignition ON with the instrument panel illumination knob pressed and continue pressing the knob for about 7 seconds.
