Controller Maintenance Process
FJ AC controller
LED Display Information Description
Two LED indicator
lamps are not on
The controller power is not connected
or the vehicle battery runs out
The green LED
flickers
The controller works normally
The green LED is
normally on
The system is powered on for self-inspection or
restores factory setting
The red and green
LEDs flicker
alternatively
Fault code = Green lamp flicker times X 10 + Red
lamp flicker times
If the controller is faulty, reading is required
according to lamp flicker at this time; fault code
value needs to be read.
The fault code consists of two digits.
The permanent order is: Green first and red later.
Green lamp flicker indicates digit position.
Red lamp flicker indicates specific value of
corresponding digit.
If the green lamp flickers once, it indicates that the
correspond
ing code digit is the tens place of digit
and if the
green lamp flickers twice, it indicates the
ones place of digit.
For example, if the green lamp flickers twice and
the red lamp flickers four times, it indicates that
the value of tens place of digit is 2 and the value of
ones place of digit is 4.
Therefore, the complete fault code is 24.
The signal lamp can display multiple faults. The
code value can be read successively with this
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