PAGE 72 — DCA300SSJU4F2 60 HZ GENERATOR • OPERATION MANUAL — REV. #0 (06/26/18)
DGC2020HD SERIES CONTROLLER
At times, it may be desired to power up the Engine Control
Module (ECM), key switch
ON
while the engine is not
running. This can be useful for diagnostic purposes and
fault clearing.
To enter the
diagnostic mode
with the controller in the
OFF
mode and the engine not running do the following:
1. Press and hold the
Alarm Slience
and
Lamp Test
buttons (Figure 90) at the same time for 10 seconds.
Figure 90. Alarm Silence/Lamp Test Buttons
2. Listen for an audiable click inside the control panel
which is the
run relay
that controls the key switch.
3. While in diagnostic mode the controller can see real
time engine CAN Bus data including
Diagnostic
Trouble Codes
(DTC).
4. To view active DTC codes navigate to Metering >J1939
ECU>DTC Active Data.
5. For previously active codes navigate to Metering>J1939
ECU>DTC Prev Data.
6. Real time ECM parameters are not supported due to
lack of sensors etc. and will display NS for No Signal.
ALARM
SILENCE
BUTTON
PRESS
SIMULTANEOUS
LAMP
TEST
BUTTON
7. The dianostic mode will remain active until the
Reset
button (Figure 91) is pressed or if the engine rpm
becomes greater than zero.
Figure 91. Reset Button
Reset
TROUBLESHOOTING (DIAGNOSTICS)
