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Home >> Lexus >> 2020 >> LS 500 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System - Circuit Tests (5 Of 9) >> Can Communication System >> Open in Bus 2 Main Bus Line [12/2017 - 10/2020] >> Description

Open in Bus 2 Main Bus Line [12/2017 - 10/2020]: Description

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 wire or connector
  • Central gateway ECU (network gateway ECU)
  • ECM
  • No. 9 CAN junction connector
  • No. 13 CAN junction connector

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