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DTC B1798: Yaw Rate Sensor Module Malfunction; DTC B1799: Vehicle Stability Control ECU Malfunction [12/2019 - 11/2023]: Description

The occupant detection ECU receives signals from the acceleration sensor (airbag sensor assembly) and skid control ECU (brake actuator assembly) via CAN communication.*1

The occupant detection ECU receives signals from the acceleration sensor (yaw rate sensor assembly) and No. 2 skid control ECU (brake actuator assembly) via CAN communication.*2

DTC No. Detection Item DTC Detection Condition Trouble Area
B1798 Yaw Rate Sensor Module Malfunction Acceleration signals are abnormal
  • Acceleration sensor (Airbag sensor assembly)*1
  • Acceleration sensor (Yaw rate sensor assembly)*2
  • CAN communication system
  • Occupant detection ECU
B1799 Vehicle Stability Control ECU Malfunction
  • Vehicle speed signal from skid control ECU is abnormal*1
  • Vehicle speed signal from No. 2 skid control ECU is abnormal*2
  • Skid control ECU (Brake actuator assembly)*1
  • No. 2 skid control ECU (Brake actuator assembly)*2
  • CAN communication system
  • Occupant detection ECU
  1. *1: for Gasoline Model
  2. *2: for HV Model
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