Wheel System, Traction
189
Service Manual – SC6500
™
LED flashes RED once to indicate that the first digit of the code will follow; the LED then flashes
YELLOW the appropriate number of times for the first digit. The LED flashes RED twice to indicate
that the second digit of the code will follow; the LED flashes YELLOW the appropriate number of
times for the second digit.
b. The numerical codes used by the yellow LED are listed in the troubleshooting chart, which also lists
possible fault causes and describes the conditions that
set
and
clear
each fault.
3. Using a Curtis hand-held programmer.
a. The 1313 programmer or the 1311 programmer will display all faults that are currently set as well
as a history of the faults that have been set since the history log was last cleared. The programmer
displays the faults by name. To use the programmer, connect it to the programmer connector located
in the electrical panel by the bank of contactors. Refer to a Curtis industries operator’s manual for
the programmer you are using for more information.
Summary of LED display formats
The status LED has four different display modes, indicating the type of information they are providing.
Types of LED Display
Display
Status
Neither LED illuminated
Controller is not powered on; or vehicle has dead
battery; or severe damage.
Yellow LED flashing
Controller is operating normally.
Yellow and red LEDs both on solid
Controller is in Flash program mode.
Red LED on solid
No software loaded, or an internal hardware
fault detected by the Supervisor or Primary
microprocessor. Cycle KSI to clear. Reload software
or replace controller if necessary.
Red LED and yellow LED flashing alternately
Controller has detected a fault. 2-digit code flashed
by yellow LED identifies the specific fault; one or
two flashes by red LED indicate whether first or
second code digit will follow.
Figure 12: 1313 Programmer
Figure 13: Programmer Connector
