Case 580SR Service Manual page 349

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FAULT CODE F11 / START UP FAULT LIMP
HOME SELECTED
Internal faults
At power up a series of integrity checks is done.
If a fault is detected:
Z and the fault prevent operation as a transmission
controller: the microprocessor locks itself in a reset
state.
Z and controlling the transmission is still possible: the
microprocessor reverts to limp home mode.
Limp Home mode
Defaulted to if an internal problem is detected at
power up.
This model automatically selected at power up if the
integrity tests show that EPROM parameters are cor-
rupt, but the microprocessor can still function as a
transmission controller (other component's integrity
are intact).
In this mode the user can operate the transmission in
either direction in 1st and 2nd. There are no protec-
tions: all shifts are unmodulated.
SECTION 21 - TRANSMISSION
Key on power
T-LED Blinks
N-LED Blinks Slower
Select neutral and push kickdown button
NO
(F11) 3 red - 5 red
Replace the
powershift lever unit
F N
Blinks
1 2 3
1 2
YES
NO No input fault
YES
Other output fault 2 red - 6 red
Refer F1, F2, F3 or F4
NO
YES
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R T N
Blinks Slower
Blink
Blinks
4 5 6 7 8
3 4
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