Open in Bus 1 Main Bus 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.

There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 23 (CA1H) and 8 (CA1L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher.

Symptom	Trouble Area
Resistance between terminals 23 (CA1H) and 8 (CA1L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher.	CAN main bus lines or connector Central gateway ECU (network gateway ECU) No. 1 CAN junction connector No. 7 CAN junction connector (w/ Blind Spot Monitor System) CAN Junction terminal (w/ Blind Spot Monitor System)

This malfunction is not related to the lines of a CAN branch or to ECUs or sensors connected to a CAN branch.