Is the connection loose?
CON4
No
Is the voltage between pin 1
and 14 of CON4 like as
below?
CON4
Pin1 BL/WH
Pin14
Voltage of Refrigerator LED
Door
Test Point
Result
Close
Pin1 To Pin14
0 V
Open
Pin1 To Pin14
12 V
Yes
Reconnect
Yes
Replace
No
MAIN PWB
(Position
No: 500A)
- 57 -
Is the voltage between
pin2 and pin3 of
Refrigerator LED Module
Housing?
Pin3 WH Pin2 BK
Voltage of Door S/W Signal
Door
Test Point
Close
Pin2 To Pin3
Open
Pin2 To Pin3
Yes
Replace R LED Module
(Position No:409D)
Check the
No
harness open
or short
Result
0 V
12 V