Diagnosis Procedure

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 (connector side and harness side).
   • Harness connector B32
   • Harness connector B124

Is the inspection result normal?

YES

GO TO 2.

NO

Repair the terminal and connector.

1. Disconnect the following harness connectors.
   • Automatic back door control module
   • Harness connectors B32 and B124
2. Check the continuity between the automatic back door control module harness connector and the harness connector.

   Automatic back door control module harness connector		Harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   B55	24	B32	18	Existed
   	12		19	Existed

Is the inspection result normal?

YES

GO TO 3.

NO

Repair the main line between the automatic back door control module and the harness connector B32.

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

   Harness connector		ADAS control unit harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   B124	18	B104	1	Existed
   	19		2	Existed

Is the inspection result normal?

YES

Check CAN system type decision again.

YES

Error was detected in the main line between the automatic back door control module and the ADAS control unit.

NO

Repair the main line between the harness connector B124 and the ADAS control unit.