CAN Communication Circuit 2

BRAKE BRANCH LINE CIRCUIT (CAN COMMUNICATION CIRCUIT 2)

Diagnosis Procedure


1. CHECK CONNECTOR

1.Turn the ignition switch OFF.
2.Disconnect the 12V battery cable from the negative terminal.
3.Check the terminals and connectors of the electrically-driven intelligent brake unit for damage, bend and loose connection (unit side and connector side).
Is the inspection result normal?
YES- GO TO 2.
NO- Repair the terminal and connector.

2. CHECK HARNESS FOR OPEN CIRCUIT

1.Disconnect the connector of electrically-driven intelligent brake unit.
2.Check the resistance between the electrically-driven intelligent brake unit harness connector terminals.





Is the measurement value within the specification?
YES- GO TO 3.
NO- Repair the electrically-driven intelligent brake unit branch line (CAN communication circuit 2 side).
System Diagram.

3. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the electrically-driven intelligent brake unit. Power Supply and Ground Circuit.
Is the inspection result normal?
YES (Present error)-Replace the electrically-driven intelligent brake unit. Removal and Installation.
YES (Past error)-Error was detected in the electrically-driven intelligent brake unit branch line (CAN communication circuit 2 side).
NO- Repair the power supply and the ground circuit.