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DTC B2284 Brake Signal Malfunction: Description

This DTC is output when: 1) the brake signal circuit between the main body ECU and the stop light switch is malfunctioning; and 2) the CAN information is inconsistent.

HINT:

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

After the main body ECU is replaced, perform the registration procedures for the engine immobiliser system (See REGISTRATION ).

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
B2284 Communication or communication line is abnormal between the main body ECU and the stop light switch
  • Stop light switch
  • CAN communication system
  • ECM
  • Main body ECU
  • Wire harness or connector
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