Diagnosis Procedure

CHECK HEADREST DISPLAY UNIT RH POWER SUPPLY AND GROUND CIRCUIT

Check headrest display unit RH power supply and ground circuits. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES

GO TO STEP 2 .

NO

Repair malfunctioning parts.

CHECK CONTINUITY AV COMMUNICATION CIRCUIT

Turn ignition switch OFF.
Disconnect headrest display unit LH connector and headrest display unit RH connector.

Check continuity between headrest display unit LH harness connector and headrest display unit RH harness connector.

Headrest display unit LH		Headrest display unit RH		Continuity
Connector	Terminals	Connector	Terminals
B554	11	B574	12	Existed
	13		14

Is the inspection result normal?

YES

GO TO STEP 3 .

NO

Repair harness or connector.

CHECK LOCATION RECOGNITION SIGNAL CIRCUIT

Check location recognition signal circuit between headrest display unit RH and ground. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES

Replace headrest display unit RH. Refer to EXPLODED VIEW .

NO

Repair harness or connector.