Repair manual

Steering and Pitch Control CRT Repair
wc_tx000096gb.fm 58
7.8 Electric Steer Error Code Diagnostics and Troubleshooting
See Graphic: wc_gr002279
When an error code is displayed via the flashing red warning lamp the
following steps should always be followed.
7.8.1 Turn ignition switch OFF. Turn ignition switch back ON and check the
steering system functionality on all 3 circuits; right, side, and left. If
error warning lamp is no longer flashing and the system is functional,
no further action is required. If the lamp is still flashing, turn ignition
switch OFF and proceed to next step.
7.8.2 Use a digital volt/ohm meter and check the static battery voltage.
Voltage must be over 11 VDC. If the system voltage is 11 VDC or
more, check the 70 amp Maxi-Fuse for the steering control system
actuators. It is located under the seat pedestal above the relays and
ignition module cover. If the voltage is under 11 volts, test and repair
the charging system.
7.8.3 Turn ignition switch ON and allow system to initialize. Record the error
code being displayed by the flashing red warning lamp. The lamp will
show a long pause followed by 1 to 4 quick flashes, a short pause, 1
to 3 quick flashes, a short pause and 1 to 5 quick flashes. The
sequence will repeat as long as there is a fault present. If the green
lamp is flashing, the machine is in an “open loop” and this indicates a
load pin fault. When the system goes into “open loop”, the load pins no
longer provide feedback to the control board. The actuators are driven
in or out by the joystick only. When the joystick is moved the actuator
will move. The actuator does not return to the center position when the
joystick is released, as it does in “closed loop”. The joystick must be
used to move the actuator in the opposite direction.
7.8.4 Use the following troubleshooting guide to diagnose and repair the
failure.