9C-279C-27TX / TXH / TXB 180S - 400L (Rev. 4/23/07)TX / TXH / TXB 180S - 400L (Rev. 4/23/07)
is shorted to ground.is shorted to ground. the engine speedthe engine speed
channel, the control-channel, the control-
ler will calculate whatler will calculate what
the missing speedthe missing speed
should bshould be. e. If seIf severalveral
speed channelsspeed channels
have a failure, of thehave a failure, of the
engine speed chan-engine speed chan-
nel has a failure, thenel has a failure, the
controller reverts to acontroller reverts to a
”limp home” mode.”limp home” mode.
sensor connected tosensor connected to
speed channel 3.speed channel 3.
Check the speedCheck the speed
sensor connected tosensor connected to
speed channel 3.speed channel 3.
6633..0011 SS//AA SSppeeeed d cchhaannnneel l 33
(wire B11) related(wire B11) related
fault : speed channelfault : speed channel
is not connected.is not connected.
When only 1 speedWhen only 1 speed
channel has a fail-channel has a fail-
ure, and which is noture, and which is not
the engine speedthe engine speed
channel, the control-channel, the control-
ler will calculate whatler will calculate what
the missing speedthe missing speed
should bshould be. e. If seIf severalveral
speed channelsspeed channels
have a failure, of thehave a failure, of the
engine speed chan-engine speed chan-
nel has a failure, thenel has a failure, the
controller reverts to acontroller reverts to a
”limp home” mode.”limp home” mode.
Contact mainte-Contact mainte-
nance for trouble-nance for trouble-
shooting.shooting.
Speed channelSpeed channel
SPC3 is not con-SPC3 is not con-
nected.nected.
Check the wiringCheck the wiring
between the control-between the control-
ler and the speedler and the speed
sensor connected tosensor connected to
speed channel 3.speed channel 3.
Check the speedCheck the speed
sensor connected tosensor connected to
speed channel 3.speed channel 3.
6633..0033 SS//AA SSppeeeed cd chhaannnneel 3l 3,,
Invalid signal.Invalid signal.
When a speed chan-When a speed chan-
nel has a failure, thenel has a failure, the
controller will flag thecontroller will flag the
appropriaappropriate te error. Iferror. If
the engine speedthe engine speed
channel has a fail-channel has a fail-
ure, the controllerure, the controller
reverts to a ”limpreverts to a ”limp
home” mode.home” mode.
Contact mainte-Contact mainte-
nance for trouble-nance for trouble-
shooting.shooting.
Speed channel is notSpeed channel is not
measuring.measuring.
Check the speedCheck the speed
sensor installation.sensor installation.
FaultFault
CCooddee TTyyppee EExxppllaannaattiioonn CCoonnttrroolllleerr’’s s AAccttiioonn DDrriivveer r AAccttiioonn FFaauullt t CCaauussee TTrroouubblleesshhoooottiinngg
7700..0000 SS//AA OOuuttppuut t 0 0 ((wwiirrees s AA0022
& A03) related fault:& A03) related fault:
– wires A02 & – wires A02 & A03A03
configured as analogconfigured as analog
output:output:
output wires areoutput wires are
shorted to eachshorted to each
other, or the senseother, or the sense
line is shorted to bat-line is shorted to bat-
tery +, or the plustery +, or the plus
line is shorted toline is shorted to
ground.ground.
– wire A02 conf– wire A02 config-ig-
d di it l td di it l t
Action will depAction will dependend
on the functionon the function
assigned to the out-assigned to the out-
put:put:
– critical ou– critical output (eg.tput (eg.
transmission valvetransmission valve
control): the control-control): the control-
ler reverts to a ”limpler reverts to a ”limp
home” mode.home” mode.
– non–critical f– non–critical featureeature
output: the controlleroutput: the controller
will flag the fault, butwill flag the fault, but
no actions will beno actions will be
t kt k
”limp home” mode:”limp home” mode:
Stop machine andStop machine and
go to neutral to bego to neutral to be
able to drive again.able to drive again.
”Limp home” mode”Limp home” mode
will result in reducedwill result in reduced
driving functionality.driving functionality.
Contact mainte-Contact mainte-
nance for trouble-nance for trouble-
shooting.”shooting.”
– wires A02 & – wires A02 & A03A03
configured as analogconfigured as analog
output:output:
output wires areoutput wires are
shorted to eachshorted to each
otherother, or , or the sensethe sense
line is shorted to bat-line is shorted to bat-
tery +, or the plustery +, or the plus
line is shorted toline is shorted to
ground.– wire A02ground.– wire A02
configured as digitalconfigured as digital
output: the output isoutput: the output is
shorted to ground.shorted to ground.
If the output is con-If the output is con-
figured as an outputfigured as an output
to a transmissionto a transmission
solenoid:solenoid:
Check the wiringCheck the wiring
between the control-between the control-
ler and the VFS/ler and the VFS/
Selector solenoid 0,Selector solenoid 0,
Check the VFS/Check the VFS/
selector solenoid 0.selector solenoid 0.
If the output is con-If the output is con-
nected to an othernected to an other
device: Check thedevice: Check the
i i b t thi i b t th
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