Bus Buffer ECU Communication Stop Mode [11/2017 - 03/2019]: Description

Detection Item	Symptom	Trouble Area
Bus Buffer ECU Communication Stop Mode	Either condition is met: Communication stop for "Accessory Gateway" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to PROBLEM SYMPTOMS TABLE [11/2017 - 03/2019] Communication system DTCs (DTCs that start with U) that correspond to "Bus Buffer ECU Communication Stop Mode" in "DTC Combination Table" are output. Refer to DTC COMBINATION TABLE [11/2017 - 03/2019]	Option connector (bus buffer ECU) branch line or connector Power source circuit of option connector (bus buffer ECU) Option connector (bus buffer ECU) ground circuit Option connector (bus buffer ECU)