• Calculates the engine oil replacement period as an appropriate target period for replacing the engine oil.
Block Diagram
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Operation
Note
• During shipment, the engine oil maintenance monitor function is stopped.
• The engine oil maintenance monitor function can be operated using the Mazda Modular Diagnostic System (M-MDS).
• The PCM performs the following calculations, and when any of the following exceed their specifications, it determines that the engine oil replacement period has been reached.
― Traveled distance
― Elapsed days
― Engine oil deterioration condition
• When the PCM determines that the engine oil replacement period has been reached, the wrench indicator light illumination request signal is sent to the instrument cluster.
