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Home >> Lexus >> 2021 >> LX 570 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System - Circuit Tests (2 Of 2) >> Can Communication System >> Open In Bus 5 Main Bus Line [09/2015 - ] >> Description

Open In Bus 5 Main Bus Line [09/2015 - ]: Description

There may be an open circuit in one of the bus 5 main lines when the resistance between terminals 15 (CA5H) and 16 (CA5L) of the central gateway ECU is 70 Ω or higher.

Detection Item Trouble Area
Resistance between terminals 15 (CA5H) and 16 (CA5L) of central gateway ECU is 70 Ω or higher.
  • Bus 5 CAN main wire or connector
  • Central gateway ECU
  • No. 3 CAN junction connector
  • No. 4 CAN junction connector
  • No. 1 CAN junction terminal

This malfunction is not related to the lines of a bus 5 branch or to ECUs or sensors connected a bus 5 branch.