Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2022 Mazda 3 BaseFACTORY OEM SERVICE PROCEDURE
Memory function
- The memory function stores malfunctions detected by the malfunction detection function in the volatile memory or non-volatile memory in each module as a DTC.
- The stored DTC can be read by the M-MDS. (See DTC INSPECTION .)
- The DTCs stored in the non-volatile memory are not cleared even if the ignition is switched off or the negative battery terminal is disconnected. Therefore, it is necessary to clear the memory from each module after repairing the malfunctions. (See CLEARING DTC .)
- For DTCs stored in the volatile memory, if the negative battery terminal is disconnected, the DTC memory for each module is cleared.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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