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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 B1DA1-74: Top Lock Motor Operation Time-Out [Retractable Hardtop Control Module] >> Notes
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DTC B1DA1-74: Top Lock Motor Operation Time-Out [Retractable Hardtop Control Module]: Notes

DTC B1DA1:74 (RETRACTABLE HARDTOP CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

Description Top lock motor operation time-out
Detection condition
  • The retractable hardtop control module detects that the top lock motor is operating for 10 s or more.
Fail-safe
  • Stops retractable hardtop operation
Possible cause
  • Retractable hardtop control module malfunction
  • Poor top lock motor installation
  • Top lock motor malfunction
System wiring diagram Not applicable