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Code
Alarm
231
COIL SHORTED
232
CONT. DRV.
EV1
CONT. DRV.
EV2
CONT. DRV.
EV3
CONT. DRV.
EV4
CONT. DRV.
EV5
Pump
EPS
Traction
(P)
(E)
(T)
Description
Cause :
This alarm occurs when there is a short circuit of one of
the coils connected to outputs of the ace 2 (back buzzer
relay coil). After the overload condition has been
removed, the alarm exits automatically by releasing and
then enabling a travel demand.
Troubleshooting:
The typical root cause for this error code to be
A)
displayed is in the harness or in the load coil. So the
very first check to carry out concerns connections
between controller outputs and loads.
In case no failures/problems have been found
B)
externally, the problem is in the controller, which has
to be replaced.
Cause :
The EV1 valve driver is not able to drive the load (cannot
close).
Troubleshooting :
The device or its driving circuit is damaged, replace the
controller.
Cause :
The EV2 valve driver is not able to drive the load (cannot
close).
Troubleshooting :
The device or its driving circuit is damaged, replace the
controller.
Cause :
The EV3 valve driver is not able to drive the load (cannot
close).
Troubleshooting :
The device or its driving circuit is damaged, replace the
controller.
Cause:
The EV4 valve driver is not able to drive the load (cannot
close).
Troubleshooting :
The device or its driving circuit is damaged, replace the
controller.
Cause:
The EV5 valve driver is not able to drive the load (cannot
close).
Troubleshooting :
The device or its driving circuit is damaged, replace the
controller.
7-90
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