DTC B1247: Tire Pressure Monitor Receiver Communication Stop [08/2013 - ]: Description
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
The main body ECU (multiplex network body ECU) and tire pressure warning ECU and receiver are connected using 2 direct lines that they use to communicate with each other.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B1247 | In diagnostic mode, an applicable RDA signal cannot be received within 10 seconds after a PRG signal is sent from the main body ECU (multiplex network body ECU). |
|