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Home >> Lexus >> 2025 >> NX 250 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Can Communication System - Circuit Tests (6 Of 9)) >> CAN COMMUNICATION SYSTEM (for HEV Model) >> Check Bus 4 Line [03/2022 - 03/2024] >> Description

Check Bus 4 Line [03/2022 - 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
  • Central gateway ECU (network gateway ECU)
  • Airbag sensor assembly
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
  • No. 2 skid control ECU (brake actuator assembly)
  • Steering sensor
  • Rack and pinion power steering gear assembly
  • No. 1 global CAN junction connector
  • No. 5 global CAN junction connector
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