Circuit Description
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is output when communication stops between the passenger side J/B ECU and the gateway ECU.
DTC DETECTION ITEM
| DTC No. |
DTC Detecting Condition |
Trouble Area |
| B1284 |
No communication from passenger side J/B ECU for more than 10 seconds. |
- Passenger side J/B ECU
- Wire harness
|