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Home >> Mazda >> 2017 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> On-Board Diagnostic - Retractable Fastback Control Module >> DTC B1D99-74; Front Roof Link Motor (RH) Operation Time-Out >> Diagnostic Procedure

Diagnostic Procedure

Step Inspection Action
1 VERIFY OTHER RETRACTABLE FASTBACK CONTROL MODULE DTCs
Yes Replace the retractable fastback control module, then go to Step 4.
(See RETRACTABLE FASTBACK CONTROL MODULE REMOVAL/INSTALLATION ).
No Go to the next step.
2 FRONT ROOF LINK
  • Visually inspect the front roof link for foreign matter.
  • Has foreign matter penetrated the front roof link?
Yes Remove foreign matter from the front roof link, then go to Step 4.
No Go to the next step.
3 FRONT ROOF LINK MOTOR (RH)
Yes Go to the next step.
No Replace the front roof link motor (RH), then go to the next step.
(See ROOF LINK MOTOR REMOVAL/INSTALLATION ).
4 VERIFY THAT REPAIRS HAVE BEEN COMPLETED
Yes Repeat the inspection from Step 1.
  • If the malfunction recurs, replace the retractable fastback control module.

(See RETRACTABLE FASTBACK CONTROL MODULE REMOVAL/INSTALLATION ).
Go to the next step.
No Go to the next step.
5 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 FASTBACK CONTROL MODULE] ).
No DTC troubleshooting completed.