2013 Mazda MX-5 Miata Grand Touring, Automatic TransFACTORY OEM SERVICE PROCEDURE

DSC HU/Cm Removal/Installation: Notes

CAUTION:
  • When replacing the DSC HU/CM with a new one, configuration procedure must be performed before removing the DSC HU/CM. If configuration is not completed before removing the DSC HU/CM, DTC B2477 will be detected.
  • 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.
  • The DSC may not function normally when the DSC HU/CM is replaced. After installation, always perform the initialization procedures for the DSC HU/CM, combined sensor and the steering angle sensor. (See COMBINED SENSOR INITIALIZATION PROCEDURE ) (See STEERING ANGLE SENSOR INITIALIZATION PROCEDURE ) (See STEERING ANGLE SIGNAL INITIALIZATION PROCEDURE )
  1. Perform DSC configuration. (See DSC CONFIGURATION )
  2. Remove in the order indicated in the illustration.
  3. Install in the reverse order of removal.
    Fig 1: DSC HU/CM Components With Torque Specifications
    G06151337Courtesy of MAZDA MOTORS CORP.
  4. After installation, perform the following procedures:
    1. Combined sensor initialization procedure. (See COMBINED SENSOR INITIALIZATION PROCEDURE )
    2. Steering angle sensor initialization procedure. (See STEERING ANGLE SENSOR INITIALIZATION PROCEDURE )
    3. Steering angle signal initialization procedure. (See STEERING ANGLE SIGNAL INITIALIZATION PROCEDURE )
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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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