CAN

ICC BRANCH LINE CIRCUIT

Diagnosis Procedure


1. CHECK CONNECTOR

1.Turn the ignition switch OFF.
2.Disconnect the battery cable from the negative terminal.
3.Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).
-ADAS control unit
-CAN gateway
Is the inspection result normal?
YES- GO TO 2.
NO- Repair the terminal and connector.

2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1.Disconnect the connector of CAN gateway.
2.Check the continuity between the CAN gateway harness connector terminals.





Is the inspection result normal?
YES- GO TO 3.
NO- Check the harness and repair the root cause (CAN communication circuit 2 side). Malfunction Area Chart.

3. CHECK HARNESS FOR OPEN CIRCUIT

1.Connect the connector of CAN gateway.
2.Disconnect the connector of ADAS control unit.
3.Check the resistance between the ADAS control unit harness connector terminals.





Is the measurement value within the specification?
YES- GO TO 4.
NO- Repair the ADAS control unit branch line.

4. CHECK POWER SUPPLY AND GROUND CIRCUIT

Check the power supply and the ground circuit of the ADAS control unit. Diagnosis Procedure.
Is the inspection result normal?
YES (Present error)-Replace the ADAS control unit. ADAS Control Unit.
YES (Past error)-Error was detected in the ADAS control unit branch line.
NO- Repair the power supply and the ground circuit.