Diagnosis Procedure

Check the CAN diagnosis results from CONSULT to see that the CAN communication circuit 1, CAN communication circuit 2 and ITS communication circuit have no malfunction.

Are the CAN communication 1 and CAN communication 2 circuits normal?

YES 

GO TO STEP 2  .

NO 

Check and repair CAN communication circuit 1 and CAN communication circuit 2.

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 for damage, bend and loose connection (unit side and connector side).

Is the inspection result normal?

YES 

GO TO STEP 3  .

NO 

Repair the terminal and connector.

1. Disconnect the following harness connectors.
   • ADAS control unit
   • ICC sensor
2. Check the continuity between the ADAS control unit harness connector and the ICC sensor harness connector.

Is the inspection result normal?

YES 

GO TO STEP 4  .

NO 

Repair the harness between the ADAS control unit and the ICC sensor.

1. Disconnect the following harness connectors.
   • Side radar LH
   • Side radar RH
   • Around view monitor control unit
   • Accelerator pedal actuator / accelerator pedal position sensor
   • Driver assistance buzzer control module
   • Sonar control unit
2. Check the continuity between the ADAS control unit harness connector terminals.

Is the inspection result normal?

YES 

GO TO STEP 5  .

NO 

Check the harness and repair or replace [if shield line or fuse block (J/B) is short] the root cause.

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

Is the inspection result normal?

YES 

GO TO STEP 6  .

NO 

Check the harness and repair or replace [if shield line or fuse block (J/B) is short] the root cause.

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

   ADAS control unit		Resistance (Ω)
   Terminal No.
   6	7	Approx. 108 - 132

3. Check the resistance between the ICC sensor terminals.

   ICC sensor		Resistance (Ω)
   Terminal No.
   3	6	Approx. 108 - 132

Is the inspection result normal?

YES 

GO TO STEP 7  .

NO 

Replace the ADAS control unit and/or the ICC sensor.

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

Inspection result

Reproduced 

GO TO STEP 8  .

Non - reproduced 

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 ITS communication circuit.
   NOTE:

   ADAS control unit and ICC sensor have a termination circuit. 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.

Non - reproduced 

Replace the unit whose connector was disconnected.