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Home >> Mazda >> 2017 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic - Retractable Fastback Control Module >> DTC U0030-87; Communication Error With Power Window Main Switch >> Notes
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DTC U0030-87; Communication Error With Power Window Main Switch: Notes

Description Communication error with power window main switch
Detection condition
  • The retractable fastback control module cannot receive a power window open signal during the retractable fastback operation.
Fail-safe
  • Stops retractable fastback operation at fully open position
Possible cause
  • Open circuit in wiring harness between retractable fastback control module terminal 4AD and power window main switch terminal 1J
  • Short to ground in wiring harness between retractable fastback control module terminal 4AD and power window main switch terminal 1J
  • Retractable fastback control module malfunction
  • Power window main switch malfunction
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