FixVault

DTC Detection Logic

DTC DETECTION CONDITION CHART

DTC No. Self-diagnosis item DTC Detection Condition Possible causes
B2458 LOCAL COMM Receipt of a malfunction signal between driver seat side control unit and passenger seat side control unit
  • Local communication line between driver side control unit and passenger side control unit is open circuit, short, short to power supply, or short to ground
  • Driver side pre-crash seat belt control unit internal circuit malfunction
  • Passenger side pre-crash seat belt control unit internal circuit malfunction
  • Power supply is not supplied to pre-crash seat belt control unit (passenger side)