U125A

U125A HEADREST DISPLAY UNIT





DTC Logic









Diagnosis Procedure
1.CHECK HEADREST DISPLAY UNIT RH POWER SUPPLY AND GROUND CIRCUIT
Check headrest display unit RH power supply and ground circuits. Component Tests and General Diagnostics, "HEADREST DISPLAY
UNIT : Diagnosis Procedure".
Is the inspection result normal?
YES - GO TO 2.
NO - Repair malfunctioning parts.
2.CHECK CONTINUITY AV COMMUNICATION CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect headrest display unit LH connector and headrest display unit RH connector.
3. Check continuity between headrest display unit LH harness connector and headrest display unit RH harness connector.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair harness or connector.
3.CHECK LOCATION RECOGNITION SIGNAL CIRCUIT
Check location recognition signal circuit between headrest display unit RH and ground. Location Recognition Signal Circuit Location Recognition Signal Circuit, "Diagnosis Procedure".
Is the inspection result normal?
YES - Replace headrest display unit RH. Exploded View.
NO - Repair harness or connector.