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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 B108B-24: Push Button Start Switch 1 Circuit Malfunction [Start Stop Unit] >> Notes

DTC B108B-24: Push Button Start Switch 1 Circuit Malfunction [Start Stop Unit]: Notes

DTC B108B:24 (START STOP UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

Description Push button start switch 1 circuit malfunction
Detection condition
  • Start stop unit detects that the push button start switch 1 is kept in an off condition 5 times or more even though the push button start switch 2 is on.
Fail-safe Not applicable
Possible cause
  • Push button start connector or terminal malfunction
  • Open circuit in wiring harness between push button start terminal G and body ground
  • Start stop unit connector or terminal malfunction
  • Open circuit in wiring harness between start stop unit terminal 1H and push button start terminal C
  • Push button start switch 1 malfunction
  • Start stop unit malfunction
G15747487Courtesy of MAZDA MOTORS CORP.