Diagnosis Procedure - Early Production

Check the CAN diagnosis results from CONSULT to see that the following circuit have no malfunction.

• CAN communication circuit and/or ITS communication circuit (Except for Mexico)
• CAN communication circuit 1, CAN communication circuit 2, and/or ITS communication circuit (For Mexico)

Are the CAN communication circuits normal?

YES

GO TO 2.

NO

Except for Mexico: Check and repair CAN communication circuit and/or ITS communication circuit.

NO

For Mexico: Check and repair CAN communication circuit 1, CAN communication circuit 2, and/or ITS communication circuit.

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ADAS control unit 2 for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES

GO TO 3.

NO

Repair the terminal and connector.

1. Disconnect the connector of ADAS control unit 2.
2. Check the continuity between the ADAS control unit 2 harness connector terminals.

   ADAS control unit 2 harness connector			Continuity
   Connector No.	Terminal No.
   M198	18	2	Existed
   	6	5	Existed

Is the inspection result normal?

YES

GO TO 4.

NO

Check the harness and repair or replace the root cause.

1. Disconnect all the unit connectors on chassis communication circuit.
2. Check the continuity between the ADAS control unit 2 harness connector terminals.

   ADAS control unit 2 harness connector			Continuity
   Connector No.	Terminal No.
   M198	18	6	Not existed

Is the inspection result normal?

YES

GO TO 5.

NO

Check the harness and repair or replace the root cause.

Check the continuity between the ADAS control unit 2 harness connector and the ground.

Is the inspection result normal?

YES

GO TO 6.

NO

Check the harness and repair or replace the root cause.

1. Remove the ADAS control unit 2.
2. Check the resistance between the ADAS control unit 2 terminals.

   ADAS control unit 2		Resistance (Ohm)
   Terminal No.
   18	6	Approx. 108 - 132
   2	5	Approx. 108 - 132

Is the measurement value within the specification?

YES

GO TO 7.

NO

Replace the ADAS control unit 2.

Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced.

Inspection result

Reproduced

GO TO 8.

NO

Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.

Perform the reproduction test as per the following procedure for each unit.

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect one of the unit connectors of chassis communication circuit.
   NOTE: ADAS control unit 2 has two termination circuits. Check other units first.
4. Connect the battery cable to the negative terminal. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced.
   NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms.

Inspection result

Reproduced

Connect the connector. Check other units as per the above procedure.

NO

Replace the unit whose connector was disconnected.