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.
On-demand self-test
2023 Mazda CX-5 SSECTION On-demand self-test
- When the on-demand self test is implemented, the current malfunctions of the selected module can be read out. (See DTC INSPECTION .)
- There are two types of the ODDTC self-tests; KOEO (key ON, ignition off) self-test while the ignition is switched ON and engine is stopped, and KOER (key ON, ignition running) self-test while idling and the vehicle is stopped.
- The DTCs which can be read out by the on-demand self test are not stored in the module, but with the M-MDS, the CMDTCs are read out automatically after the ODDTCs read out, and both of the results are displayed.
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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.