CHECK CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect all connectors (B280, B310, B55, B135 or B136, B230, B231, B450) that are connected to high speed CAN communication line.

QUESTION

Is there connector terminal where poor contact exists?

Yes No

Repair the connector terminal where poor contact exists, or replace harness.

Temporary poor contact occurs.