Brake Booster (Skid Control ECU) Communication Stop Mode [11/2021 - 10/2023]: Description

Detection Item	Symptom	Trouble Area
Brake Booster (Skid Control ECU) Communication Stop Mode	Any of the following conditions are met: Communication stop for "Brake Booster" is indicated on the "Communication Bus Check" screen of the Techstream. Refer to DIAGNOSIS SYSTEM [11/2021 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 10/2023] Communication stop history for "Brake Booster" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Brake Booster" is 6 or more.) Refer to PROBLEM SYMPTOMS TABLE [11/2021 - 10/2022] , or refer to PROBLEM SYMPTOMS TABLE [10/2022 - 10/2023] Communication system DTCs (DTCs that start with U) that correspond to "Brake Booster (Skid Control ECU) Communication Stop Mode" in "DTC Combination Table" are output. Refer to DTC COMBINATION TABLE [11/2021 - 10/2022] , or refer to DTC COMBINATION TABLE [10/2022 - 10/2023]	Brake booster assembly (No. 1 skid control ECU) branch wire or connector Power source circuit of brake booster assembly (No. 1 skid control ECU) Brake booster assembly (No. 1 skid control ECU) ground circuit Brake booster assembly (No. 1 skid control ECU)