Check Bus 1 Line [03/2024 - ]: Description

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2025 Lexus NX 350, 2025 Lexus NX 250, 2024 Lexus NX 350, 2024 Lexus NX 250, and 2023 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.

Symptom	Trouble Area
There are ECUs or sensors that display a communication stop on the bus diagnostic screen. Or, there are ECUs or sensors that display communication stop history on the "Detail" screen.	CAN main bus line, CAN branch line or connector Central gateway ECU (network gateway ECU) Forward recognition camera Millimeter wave radar sensor assembly Parking assist ECU (w/ Panoramic View Monitor System) Clearance warning ECU assembly (w/ Parking Support Brake System) Rear television camera assembly (w/ Parking Assist Monitor System) Front side radar sensor (LH) (w/ Front Side Radar Sensor System) Blind spot monitor sensor LH (B) No. 2 global CAN junction connector No. 7 global CAN junction connector No. 12 global CAN junction connector No. 14 global CAN junction connector No. 15 global CAN junction connector No. 3 CAN junction terminal

Symptom

Trouble Area

There are ECUs or sensors that display a communication stop on the bus diagnostic screen. Or, there are ECUs or sensors that display communication stop history on the "Detail" screen.

CAN main bus line, CAN branch line or connector
Central gateway ECU (network gateway ECU)
Forward recognition camera
Millimeter wave radar sensor assembly
Parking assist ECU (w/ Panoramic View Monitor System)
Clearance warning ECU assembly (w/ Parking Support Brake System)
Rear television camera assembly (w/ Parking Assist Monitor System)
Front side radar sensor (LH) (w/ Front Side Radar Sensor System)
Blind spot monitor sensor LH (B)
No. 2 global CAN junction connector
No. 7 global CAN junction connector
No. 12 global CAN junction connector
No. 14 global CAN junction connector
No. 15 global CAN junction connector
No. 3 CAN junction terminal