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Open in Bus 1 Main Bus Line [08/2019 - ]: Description

There may be an open circuit in one of the bus 1 main lines when the resistance between terminals 23 (CA1H) and 8 (CA1L) of the network gateway ECU is 70 Ω or higher.

Symptom Trouble Area
Resistance between terminals 23 (CA1H) and 8 (CA1L) of network gateway ECU is 70 Ω or higher.
  • CAN main bus line or connector
  • Network gateway ECU
  • No. 3 CAN junction connector
  • No. 10 CAN junction connector

This malfunction is not related to the lines of a bus 1 branch or to ECUs or sensors connected to a bus 1 branch.

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