Troubleshooting
Printed in U.S.A. 191 50940411/G0219
35
Pump swash plate
sensor supply
voltage fault
Supply voltage for swashplate
sensors is faulty. Swash sensor
output voltage is out of range.
Both pumps are disabled.
Check connector and wiring to
sensors.
Check sensor supply voltage.
Refer to the Service Manual.
36
Battery voltage out-
of-range fault
Battery voltage is out of range.
Both pumps, lift arm
raise/lower, attachment
tilt and standard auxiliary
hydraulics are disabled.
Check alternator, battery and
charging circuit.
Check battery voltage (9- 16 volts).
Check all power and ground
connections to controller2.
37
Pump and
attachment tilt
solenoid supply
voltage out-of-
range fault
Supply voltage to solenoid valves
controlled by controller2 is out-of-
range.
Both pumps and
attachment tilt are
disabled.
Check solenoid voltage (9- 16
volts).
Check controller2 Power Relay.
Check fuses to controller2. Check
wiring and connectors on
controller2 and on solenoid valves.
38
Limp mode (See
“Travel Drive Error
Condition Operation
(Limp Mode)” on
page 94)
Any pump solenoid fault (codes 7-
10).
Applies when solenoid
codes 7-10 are active.
Functional pump
solenoids will operate at
reduced output (20% of
max). The faulty solenoid
will remain disabled.
See individual pump solenoid fault
codes (7-10).
Limp mode is only operable with a
single solenoid/sensor fault. If there
are multiple solenoid and sensor
faults, limp mode is inoperable and
both pumps will remain disabled.
39
Open loop mode
(See “Travel Drive
Error Condition
Operation (Limp
Mode)” on page 94)
Any pump sensor fault (codes 3-6).
Applies when sensor
codes 3-6 are active. The
remaining operating
swash plate sensor will
also be disabled. The
pump solenoids will
operate the pump without
feedback at reduced
output.
See individual pump sensor fault
codes (3-6).
Open loop mode is only operable
with a single sensor/solenoid fault.
If there are multiple sensor/
solenoid faults, open loop mode is
inoperable and both pumps will
remain disabled.
1-2
(27)
No CAN
communication
from engine ECU to
multi-function
display
CAN messages not being sent
from engine ECU to multi-function
display. May be accompanied by
code 27.
Engine parameters not
displayed.
Check connector and wiring on and
between engine ECU and multi-
function display.
Check cab to chassis harness
connector on rear wall of cab.
1-3
(1-4)
(29)
No CAN
communication
from controller1 to
multi-function
display
CAN messages not being sent
from controller1 to multi-function
display. May be accompanied by
codes 29 and 1-4.
Both pumps and multiple
functions may be
disabled.
Check connector and wiring on and
between controller1, controller2
and multi-function display.
Check cab to chassis harness
connector on rear wall of cab.
Table 57: Drive and Valve Error Codes
Error
Code
Error Description Fault Cause Fault Action Corrective Action
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