Diagnosis Procedure

Check the CAN diagnosis results from CONSULT to see that the chassis CAN communication 1 circuit has no malfunction.

Is the chassis CAN communication 1 circuits normal?

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GO TO 2.

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Check and repair chassis CAN communication 1 circuit.

1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Disconnect all the unit connectors on chassis CAN communication 2 circuit.
4. Check the terminals and connectors for damage, bend and loose connection.

Is the inspection result normal?

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GO TO 3.

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Repair the terminal and connector.

Check the continuity between the chassis control module harness connector terminals.

Is the inspection result normal?

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GO TO 4.

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Check the harness and repair or replace the root cause.

Check the continuity between the chassis control module harness connector and the ground.

Is the inspection result normal?

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GO TO 5.

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Check the harness and repair or replace the root cause.

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

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

3. Check the resistance between the ADAS control unit terminals.

   ADAS control unit		Resistance (Ω)
   Terminal No.
   8	9	Approx. 108 - 132

Is the measurement value within the specification?

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GO TO 6.

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Replace the chassis control module and/or the ADAS control unit.

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

Inspection result

Reproduced>>

GO TO 7.

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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 CAN communication 2 circuit.
   NOTE: Chassis control module and ADAS control unit 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.

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Replace the unit whose connector was disconnected.