LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2021 >> MX-5 Miata Club, Standard Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic - Retractable Fastback Control Module >> DTC B1D9D-74: Rear Roof Link Motor (RH) Operation Time-Out [Retractable Hardtop Control Module] >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC B1D9D-74: Rear Roof Link Motor (RH) Operation Time-Out [Retractable Hardtop Control Module]: Notes

DTC B1D9D:74 (RETRACTABLE HARDTOP CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

Description Rear roof link motor (RH) operation time-out
Detection condition
  • The retractable hardtop control module detects that the rear roof link motor (RH) is operating for 10 s or more.
Fail-safe
  • Stops retractable hardtop operation
Possible cause
  • Foreign matter penetrates rear roof link
  • Rear roof link motor (RH) malfunction
  • Retractable hardtop control module malfunction
System wiring diagram Not applicable