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

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.

Detection Item	Symptom	Trouble Area
Brake Booster (Skid Control ECU) Communication Stop Mode	Communication stop for "Brake Booster" is indicated on the "Communication Bus Check" screen of the GTS. Refer to DIAGNOSIS SYSTEM [11/2021 - 03/2023] , or refer to DIAGNOSIS SYSTEM [03/2023 - 03/2024] , or refer to DIAGNOSIS SYSTEM [03/2024 - ]	No. 1 skid control ECU (brake booster with master cylinder assembly) branch line or connector Power source circuit of No. 1 skid control ECU (brake booster with master cylinder assembly) No. 1 skid control ECU (brake booster with master cylinder assembly) ground circuit No. 1 skid control ECU (brake booster with master cylinder assembly)