Diagnosis Procedure

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

Is the CAN communication circuit normal?

YES

GO TO 2 .

NO

Check and repair CAN communication circuit.

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
   • Chassis control module

Is the inspection result normal?

YES

GO TO 3 .

NO

Repair the terminal and connector.

1. Disconnect the following harness connectors.
   • ADAS control unit
   • Chassis control module (models without automatic drive positioner)
   • Sonar control unit
   • Around view monitor control unit (models with intelligent around view monitor system)
   • Side radar RH
   • Side radar LH
   • ICC sensor
2. Check the continuity between the ADAS control unit harness connector terminals.

Is the inspection result normal?

YES

GO TO 4 .

NO

Check the harness and repair the root cause.

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

Is the inspection result normal?

YES

GO TO 5 .

NO

Check the harness and repair the root cause.

1. Remove the ADAS control unit.
2. Check the resistance between the ADAS control unit terminals.
   With automatic drive positioner
   
   

   ADAS control unit		Resistance (Ω)
   Terminal No.
   2	5	Approx. 108 - 132

   without automatic drive positioner
   
   

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

Is the inspection result normal?

YES

GO TO 6 .

YES

GO TO 7 .

NO

Replace the ADAS control unit.

1. Remove the chassis control module.
2. Check the resistance between the chassis control module terminals.

   Chassis control module		Resistance (Ω)
   Terminal No.
   11	8	Approx. 108 - 132

Is the inspection result normal?

YES

GO TO 7 .

NO

Replace the chassis control module.

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 ITS communication circuit.
   NOTE: ADAS control unit and chassis control module 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.

NO

Replace the unit whose connector was disconnected.