Check Bus 5 Line [03/2023 - 03/2024]: 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.

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 Air conditioning amplifier assembly Position control ECU assembly LH (w/ Seat Position Memory System) Multiplex tilt and telescopic ECU (w/ Power Tilt and Power Telescopic System) Certification ECU (smart key ECU assembly) Multiplex network door ECU (w/ Power Back Door System) Main body ECU (multiplex network body ECU) No. 4 global CAN junction connector No. 11 global CAN junction connector

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
Air conditioning amplifier assembly
Position control ECU assembly LH (w/ Seat Position Memory System)
Multiplex tilt and telescopic ECU (w/ Power Tilt and Power Telescopic System)
Certification ECU (smart key ECU assembly)
Multiplex network door ECU (w/ Power Back Door System)
Main body ECU (multiplex network body ECU)
No. 4 global CAN junction connector
No. 11 global CAN junction connector