16 ► GTR20B01
User Manual
1
APECS unit not calibrated
yes
Calibrate APECS unit.
2
Engine speed excessive
yes
Check parameter settings. Over speed criteria may be
too sensitive.
Check for electrical noise entering controller.
Check wiring and connections.
Check case ground.
Make sure linkage moves freely, without backlash.
Check tip of speed sensor.
3
Engine speed unusually low
yes
Check parameter settings.
Check linkage and the actuator travel.
Ensure that load is not greater than engine capacity.
4
Engine shutdown due to engine
yes
Check parameter settings.
protection input
Check what may have triggered the protection input.
5
Factory settings lost
yes
If calibration file is available, download the file and cycle
power
again.
If controller still does not work or if no calibration file is
available, consult factory.
6
External pot out-of-range
no
Verify that pot is wired correctly.
Recalibrate external pot.
7
Accelerator position / idle
no
Verify that signals are working and synchronized.
switch conflict
8
Controller unit failed
yes
Electrical noise may be entering the controller.
Check wiring, shielding and connections to controller.
Cycle power to engine.
If controller still does not work, consult factory.
9
Limiting excessive
no
Check actuator for short to ground or low resistance.
actuator current
Check parameter settings.
Check linkage and actuator travel.
Ensure that load is not greater than engine capacity.
10
Engine speed input
no
(Active only in Auto crank mode).
signal missing
Check speed sensor wiring.
Check starter motor.
11
Auto crank unable to
no
Check fuel.
start
engine
12
Auxiliary output is shorted
no
Check the lamp or relay hooked to the output. If fault is
still present, consult factory.
13
Auxiliary output #2 is shorted
no
Check the lamp or relay hooked to the output. If fault is
still present, consult factory.
14
Actuator disconnected or
no
Check actuator wiring and actuator resistance.
open circuit
Resistance should be less than 10 ohms.
FLASH ENGINE
CODE
FAULT
SHUTDOWN
CORRECTIVE ACTION
FAULT CODES
