DTC B2284: Brake Signal Malfunction: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is output 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 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
DTC DETECTION CONDITION CHART
| 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 |
|