Toyota 2GR-FE Manual page 936

ST–74
DTC
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 page EI-8).
DTC No.
B2284
ST
2GR-FE STARTING – SMART KEY SYSTEM
B2284 Brake Signal Malfunction
DTC Detection Condition
Communication or communication line is abnormal
between the main body ECU and the stop light switch
Trouble Area
• Stop light switch
• CAN communication system
• ECM
• Main body ECU
• Wire harness or connector