LG LFC20770SW - 3) Refrigerator LED Lamp not working

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4
1-. Remove Cover LED LAMP.
2-. Check Voltage between Red and
Black wires as is shown in the picture.
No Checking flow Result & SVC Action
Result SVC Action
Freezer Door
S/W pressed
11~12VDC Check in released condition.
0VDC Replace Door Switch
Freezer Door
S/W released
0VDC Replace LED Lamp
Other Replace Refrigerator unit.
3-. Press and Release Freezer Door
switch.