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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 322 (Can Communication System (Except HEV) (Early 2023, TMC) - Circuit Tests (2 Of 4)) >> CAN COMMUNICATION SYSTEM (for Gasoline Model TMC Made) >> Check Bus 1 Line [09/2022 - 11/2022] >> Description

Check Bus 1 Line [09/2022 - 11/2022]: Description

WARNING: This page is about a different car, the 2023 Toyota GR Corolla and 2023 Toyota Corolla. 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
  • Blind spot monitor sensor LH (B) (w/ Blind Spot Monitor System)
  • No. 18 CAN junction connector
  • No. 19 CAN junction connector
  • CAN junction terminal
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