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Home >> Mazda >> 2023 >> MX-5 Miata Club >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> On-Board Diagnostic - Start Stop Unit >> DTC P0930-71: Shift-Lock Solenoid Circuit Malfunction [Start Stop Unit] >> Notes

DTC P0930-71: Shift-Lock Solenoid Circuit Malfunction [Start Stop Unit]: Notes

DTC P0930:71 (START STOP UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

Description Shift-lock solenoid circuit malfunction
Detection condition
  • The start stop unit continues to operate the shift-lock solenoid for 30 min or more with the ignition switched ON (engine off or on).
Fail-safe Inhibits the shift lock control.
Possible cause
  • DTCs are stored in the TCM.
    • Transaxle range switch circuit malfunction
  • Brake switch connector or terminal malfunction
  • Brake switch (No. 1 signal) malfunction
  • Start stop unit connector or terminal malfunction
  • Short to ground in wiring harness between brake switch terminal D and start stop unit terminal 1C
  • Start stop unit malfunction
G15747528Courtesy of MAZDA MOTORS CORP.