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Home >> Mazda >> 2021 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic - Retractable Fastback Control Module >> DTC U3000-49: Retractable Hardtop Control Module Internal Malfunction [Retractable Hardtop Control Module] >> Diagnostic Procedure
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Diagnostic Procedure

DTC U3000:49 (RETRACTABLE HARDTOP CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 VERIFY IF MALFUNCTIONING LOCATION IS RETRACTABLE HARDTOP CONTROL MODULE DEPENDING ON REPEATABILITY
Yes Replace the retractable hardtop control module, then go to the next step.
(See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION .)
No Go to the next step.
2 VERIFY IF OTHER DTCs DISPLAYED
  • Are any other DTCs displayed?
Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [RETRACTABLE HARDTOP CONTROL MODULE] .)
No DTC troubleshooting completed.