Curtis 1222 - Troubleshooting Chart Details

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Curtis 1222 Manual, os 15
2 9 J A N U A R Y 2 0 1 3 D R A F T
7 — DIAGNOSTICS & TROUBLESHOOTING
Summary of LED display formats
The two LEDs have four different display modes, indicating the type of infor
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mation they are providing.
Table 5 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.
Both LEDs on solid Controller is in Flash program mode.
Red LED and yellow LED Controller has detected a fault. 2-digit code
flashing alternately flashed by yellow LED identifies the specific
fault; one or two flashes by red LED indicate
whether first or second code digit will follow.
TROUBLESHOOTING
The troubleshooting chart, Table 6, provides the following information about
each controller fault:
• fault code and sub-code
• fault name as displayed on the programmer’s LCD
• possible causes of the fault
• fault
set conditions and fault clear conditions
• steer fault action (effect of fault on steering)
• traction fault action (effect of fault on traction)
For each fault, the chart shows one of these four Steer Fault actions:
Warning Only — The 1222 still operates normally.
Shutdown — Immediate shutdown of the 1222 and turn-off of the fault
output (pin 23).
Warning then Shutdown — The 1222 continues to operate until the traction
motor comes to a stop or the timer (set by Fault Steering Timeout) expires.
After this occurs, the Shutdown action takes place.
Hold then Shutdown — The 1222 tries to hold the existing wheel position
regardless of operator input until the traction motor comes to a stop or the
timer (set by Fault Steering Timeout) expires. After this occurs, the Shutdown
action takes place.
Whenever a fault is encountered and no wiring or vehicle fault can be found,
shut off KSI and turn it back on to see if the fault clears. If it does not, shut
off KSI and remove the 35-pin connector. Check the connector for corrosion
or damage, clean it if necessary, and re-insert it.