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.
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HOMESERVICE MANUALSMAZDA20133 MAZDASPEED, 2.3L ENG VIN 3REPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLDYNAMIC STABILITY CONTROL SYSTEMDYNAMIC STABILITY CONTROL HU/CM INSPECTIONNOTES
2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3
Dynamic Stability Control HU/Cm Inspection: Notes
2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3SECTION Notes
- Disconnect the DSC HU/CM connector. (See DSC HU/CM REMOVAL/INSTALLATION .)
- Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .) (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO] .)
- Attach the tester lead to the DSC HU/CM wiring harness-side connector and inspect voltage, continuity, or resistance according to the standard (reference) on the table.
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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.