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[100]
IPM abnormal of DC fan motor driving board
if wire between fan motor
and module is connected
normally
yes
if radiator motor is
running after fan motor
starts up
yes
if fan motor is
blocked
no
replace module
[101]
DC motor driving board detecting out of control
if wire between fan motor
and module is connected
normally
yes
if it is normal after replacing
motor and module
yes
motor and module broken down
no
no
if there is 220VAC on
CN50 of connecting
board
yes
replace radiator
replace motor
motor
no
no
169
re-connect and test again
no
yes
re-connect and test again
module is ok, replace motor and
re-test
replace PCB
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