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DTC B2284: Brake Signal Malfunction: Description

This DTC is stored when: 1) the brake signal circuit between the power source control ECU and the stop light switch is malfunctioning; and 2) the BEAN information is inconsistent.

HINT: 

When the power source control ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.

DTC No. DTC Detection Condition Trouble Area
B2284 Communication or communication line is abnormal between the power source control ECU and the stop light switch
  • Stop light switch
  • Multiplex communication system
  • CAN communication system
  • ECM
  • Power source control ECU
  • Wire harness or connector
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