Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

LIN Communication System (for Gasoline Model)

DTC No.	Detection Item	Link
B1206	P/W Master Switch Communication Stop
B1273	Sliding Roof ECU Communication Stop
B2321	D-Door Motor ECU Communication Stop
B2322	P-Door Motor ECU Communication Stop
B2323	RR-Door Motor ECU Communication Stop
B2324	RL-Door Motor ECU Communication Stop
B2325	LIN Communication Bus Malfunction
B2785	Communication Malfunction between ECUs Connected by LIN
B2786	No Response from Steering Lock ECU
B278C	Lost Communication with Power Source Control

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Motor Generator Control System: DC/DC Converter Status Circuit Short to Battery (P0A0812,P0A0814)
DESCRIPTION The DC/DC converter varies output voltage based on voltage change signals (VLO signal line) received from the motor generator control ECU. If the vehicle is being driven with an inoperative DC/DC converter, the voltage of the auxiliary battery will drop, which will prevent the continued ...

Toyota Avalon (XX50) 2019-2022 Owners Manual