HEM8500 Engine CAN Monitoring Controller User Manual Page 18 of 45
5.5
ENGINE DIAGNOSIS OPERATION
a)
Press
key to enter into
Diagnostic Mode
if ECU alarms of controller occur.
b)
After system enters into diagnostic mode, if the first ECU alarm is shutdown alarm, engine red light
will flash once at first; if ECU alarm is warning alarm, engine yellow light will flash once at first.
c)
After alarm types were indicated, engine detailed fault information can be checked according to the
red light flash frequency, for example, red light first time flashes twice, second time flashes 3 times,
and third time flashes 5 times, then fault code (indicator) data is 235, and corresponding fault
information is low coolant level alarm.
d)
If ECU fault occurs, fault information is the same failure, and then the light flashes twice.
e)
If there are other ECU alarms, please repeat step b-c.
f)
Again press
key to exit diagnostic mode.
g)
If ECU has no alarms, press
key, both engine red light and yellow light are light off.
