Diagnosis Procedure
- CHECK CONTINUITY IMAGE SWITCH SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect headrest display unit connector and video distributor connector.
- Check continuity between headrest display unit harness connector and video distributor harness connector.
Headrest display unit Video distributor Continuity Connector Terminal Connector Terminal B554* 1 20 M217 10 Existed B574* 2 20 9 Existed * 1: Headrest display unit LH
* 2: Headrest display unit RH
- Check continuity between headrest display unit harness connector and ground.
Headrest display unit Ground Continuity Connector Terminal B554* 1 20 Not existed B574* 2 20 * 1: Headrest display unit LH
* 2: Headrest display unit RH
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair harness or connector.
- CHECK VIDEO DISTRIBUTOR VOLTAGE
- Connect headrest display unit connector and video distributor connector.
- Turn ignition switch ON.
- Check voltage between video distributor harness connector and ground.
(+) (-) Condition Voltage
(Approx.)Video distributor Connector Terminal M217 9 Ground When DVD, USB or front AUX image is displayed on headrest display unit RH. 0.5 V When rear AUX image is displayed on headrest display unit RH. 4.5 V 10 When DVD, USB or front AUX image is displayed on headrest display unit LH. 0.5 V When rear AUX image is displayed on headrest display unit LH. 4.5 V
Is the inspection result normal?
YES
Replace video distributor. Refer to REMOVAL AND INSTALLATION .
NO
Replace headrest display unit LH (RH). Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .