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

DTC B2477 [Dynamic Stability Control (DSC)]: Notes

DTC B2477 DETECTION CONDITION AND POSSIBLE CAUSE

DTC B2477 DSC HU/CM configuration
DETECTION CONDITION 
  • Condition 1
    • Configuration data is not within the specification.
    • Condition 2
    • Configuration data cannot be read.
    • Condition 3
  • Configuration data is at an unused value.
POSSIBLE CAUSE 
  • Module configuration procedure was not completed properly.
  • DSC HU/CM malfunction
Factory Service Tools

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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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