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Home >> Mazda >> 2021 >> MX-5 Miata Club, Standard Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic - Retractable Fastback Control Module >> DTC B1DA0-79: Exceeds Maximum Number Of Pulse Counts For Top Lock Motor [Retractable Hardtop Control Module] >> Notes
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DTC B1DA0-79: Exceeds Maximum Number Of Pulse Counts For Top Lock Motor [Retractable Hardtop Control Module]: Notes

DTC B1DA0:79 (RETRACTABLE HARDTOP CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

Description Exceeds maximum number of pulse counts for top lock motor
Detection condition
  • The retractable hardtop control module detects a pulse signal exceeding the maximum number of the pulse counts from the top lock motor.
Fail-safe
  • Stops retractable hardtop operation
Possible cause
  • Poor top lock motor installation
  • Top lock motor malfunction
  • Retractable hardtop control module malfunction
G13490337Courtesy of MAZDA MOTORS CORP.