White Picture Is Shown on the Display/Display Lock

White picture is shown on the display/display lock

1. With the ignition switch to ON (II), push the rear power switch ON to see if the screen turns ON.

Is it normal?

YES - Operation is normal.

NO - Go to step 2.

2. Run the rear entertainment system self-diagnostic.

Is it normal?

YES - Operation is normal.

NO - Substitute a known-good rear controller and screen, and recheck. If the symptom/indication goes away, replace the original rear controller and screen.