Owner`s manual

77
Bulletins, Etc.
5
Figure 16. GCU Blink Code Chart with the engine Running.
Governor Control Unit (24 584 59-S) Blink Codes for Software Version: KGETO301
Stored Codes - Activated when the key is turned to the "on" position.
LED Diagnostics
Failure Condition Possible Causes Response Response
Time
Yellow
LED
Green
LED
Speed Error BLINKS ON
Watchdog Interrupt RFI interference Ground to kill, close
carb throttle plate
BLINKS BLINKS
Overtemp
Software bug
Lightning
Overspeed
(Over 4500 RPM for
0.5 seconds
sustained)
External Noise on ignition input Ground to kill, close
carb throttle plate
1 second delay ON ON
Frozen carb throttle plate
DLA failure
Mechanical bindage
Excessive Battery
Voltage
(> 18v for .5 seconds)
Open battery voltage on B+
24 V battery (Not Compatible
with system, 12 V battery only)
Ground to kill, close
carb throttle plate
0.5 seconds OFF ON
Governor Control Unit (24 584 59-S) Blink Codes for Software Version: KGETO301
Running Codes - Activated when the engine is running.
LED Diagnostics
Failure Condition Possible Causes Response Response Time Yellow
LED
Green
LED
Running Normally
None
BLINKS BLINKS
RPM Too High Mechanical bindage
None
ON BLINKS
RPM Too Low Mechanical bindage
None
ON BLINKS
Missing Pulse
(Normal RPM)
Faulty igniting
Faulty ignition wiring
BLINKS ON
Missing Pulse
(RPM Too High)
Faulty igniting
Faulty ignition wiring
ON ON
Missing Pulse
(RPM Too Low)
Faulty igniting
Faulty ignition wiring
OFF ON
Sleep Mode
Power at GCU with no ignition
pulses (left in run mode)
System Shutdown 30 Minutes
OFF OFF
Watchdog Interrupt RFI interference Ground to kill, close
carb throttle plate
N/A BLINKS OFF
Overtemp
Software bug
Lightning
Overspeed
(Over 4500 RPM
for 0.5 seconds
sustained)
External Noise on ignition input
Frozen carb throttle plate
DLA failure
Mechanical bindage 1 second delay ON OFF
Excessive Battery
Voltage
(> 18v for .5 seconds)
Open battery voltage on B+
24 V battery (Not Compatible
with system, 12 V battery only)
Ground to kill, close
carb throttle plate
0.5 seconds OFF OFF
Figure 15. GCU Blink Code Chart with Key in the "on" Position.