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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 B1DA1-94: Error Signal Received From Top Lock Motor [Retractable Hardtop Control Module] >> Notes
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DTC B1DA1-94: Error Signal Received From Top Lock Motor [Retractable Hardtop Control Module]: Notes

DTC B1DA1:94 (RETRACTABLE HARDTOP CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

Description Error signal received from top lock motor
Detection condition
  • The retractable hardtop control module receives a signal from the top lock motor while the top lock motor is not operating.
Fail-safe
  • Stops retractable hardtop operation
Possible cause
  • Short to power supply in wiring harness between the following terminals:
    • Retractable hardtop control module terminal 2B and top lock motor terminal E
    • Retractable hardtop control module terminal 2F and top lock motor terminal A
  • Top lock motor malfunction
  • Retractable hardtop control module malfunction
G13490339Courtesy of MAZDA MOTORS CORP.