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 B239
   • Harness connector B63

Is the inspection result normal?

YES

GO TO 2.

NO

Repair the terminal and connector.

1. Disconnect the following harness connectors.
   • Side radar RH
   • Harness connectors B239 and B63
2. Check the continuity between the side radar RH harness connector and the harness connector.

   Side radar RH harness connector		Harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   B243	4	B239	7	Existed
   	3		3	Existed

Is the inspection result normal?

YES

GO TO 3.

NO

Repair the main line between the side radar RH and the harness connector B239.

1. Disconnect the connector of side radar LH.
2. Check the continuity between the harness connector and the side radar LH harness connector.

   Harness connector		Side radar LH harness connector		Continuity
   Connector No.	Terminal No.	Connector No.	Terminal No.
   B63	7	B74	4	Existed
   	3		3	Existed

Is the inspection result normal?

YES

Check CAN system type decision again.

YES

Error was detected in the main line between the side radar RH and the side radar LH.

NO

Repair the main line between the harness connector B63 and the side radar LH.