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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 B10AC-23: Cruise Control Switch Circuit Malfunction [Start Stop Unit] >> Notes

DTC B10AC-23: Cruise Control Switch Circuit Malfunction [Start Stop Unit]: Notes

DTC B10AC:23 (START STOP UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

Description Cruise control switch circuit malfunction
Detection condition
  • Start stop unit detects any cruise control switch stuck on for 120 s or more with the ignition switched ON (engine off or on).
Fail-safe Not applicable
Possible cause
  • Instrument cluster configuration error
  • Clock spring connector or terminal malfunction
  • Clock spring malfunction
  • Start stop unit connector or terminal malfunction
  • Short to ground in wiring harness between start stop unit terminal 1Y and clock spring terminal 1J
  • Short to power supply in wiring harness between start stop unit terminal 1Y and clock spring terminal 1J
  • Cruise control switch malfunction
  • Start stop unit malfunction
G15747491Courtesy of MAZDA MOTORS CORP.