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 MANUALSMAZDA20113 MAZDASPEED, 2.3 3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 638 (DYNAMIC STABILITY CONTROL SYSTEM)DSC HU/CM REMOVAL/INSTALLATIONNOTES

2011 Mazda 3 Mazdaspeed, 2.3 3

DSC HU/Cm Removal/Installation: Notes

2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Notes

WARNING: This page is about a different car, the 2011 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

When replacing the DSC HU/CM, the configuration procedure must be done before removing the DSC HU/CM. If the configuration is not completed before removing the DSC HU/CM, DSC will not work properly after installation of the DSC HU/CM.
The DSC may not function normally when the DSC HU/CM is replaced. After installation, always perform the initialization procedures for the combined sensor and the steering angle sensor.
The internal parts of the DSC HU/CM could be damaged if dropped. Be careful not to drop the DSC HU/CM. Replace the DSC HU/CM if it is subjected to an impact.

Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION [13B-MSP] .)
Remove the front suspension tower bar. (See FRONT SUSPENSION TOWER BAR REMOVAL/INSTALLATION [MT] .) (See FRONT SUSPENSION TOWER BAR REMOVAL/INSTALLATION [AT] .)
Remove in the order indicated in the figure below.
Install in the reverse order of removal.
Configure the DSC HU/CM. (See DSC CONFIGURATION .)
After installation, perform the combined sensor initialization procedure. (See COMBINED SENSOR INITIALIZATION PROCEDURE .)
After installation, perform the steering angle sensor initialization procedure. (See STEERING ANGLE SENSOR INITIALIZATION PROCEDURE .)

Fig 1: DSC HU/CM Replacement Components With Torque Specifications

Courtesy of MAZDA MOTORS CORP.

RENDER: 1.0x

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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.