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The BCU (Basic Control Unit) controls the tractor's basic functions
and the hitch.
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Light
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Diagnostic trouble code
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Brief description
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Description
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yellow
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BCU
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001058
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.18
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Brake system
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Air brake pressure too low.
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blue
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BCU
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001504
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.14
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HMS
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Operator presence switch not activated while HMS is selected.
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blue
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BCU
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001894
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.31
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Rear PTO
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Rear PTO switch was on when engine was started.
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yellow
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BCU
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002818
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.31
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Rear PTO
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Operator presence switch not activated.
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blue
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BCU
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523689
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.31
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Differential lock
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Differential lock switch, fault.
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blue
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BCU
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523690
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.02
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Hitch
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Switch for remote control of hitch (right/left), fault.
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blue
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BCU
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523745
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.31
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HMS
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HMS program switch, fault.
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blue
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BCU
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523758
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.11
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Rear PTO
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Switch for remote control of rear PTO (right), fault.
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blue
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BCU
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523759
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.11
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Rear PTO
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Switch for remote control of rear PTO (left), fault.
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blue
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BCU
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523839
|
.14
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Park brake
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Park brake is engaged and a gear is selected.
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blue
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BCU
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523839
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.31
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Park brake
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Park brake is activated while wheel speed is detected.
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yellow
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BCU
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523904
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.31
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Front PTO
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Operator presence switch not activated while front PTO is selected.
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yellow
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BCU
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523908
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.14
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Rear PTO
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Remote control switch for rear PTO is activated.
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blue
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BCU
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523908
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.31
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Rear PTO
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PTO preselector switch, fault.
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blue
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BCU
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524216
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.02
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HMS
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Switch off the front PTO switch.
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blue
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BCU
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524216
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.14
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HMS
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Switch on the front PTO switch.
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blue
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BCU
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524216
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.31
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Front PTO
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Front PTO was switched on when engine was started.
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yellow
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BCU
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524224
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.02
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HMS
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Switch off the rear PTO switch.
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blue
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BCU
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524224
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.14
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HMS
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Switch on the rear PTO switch.
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blue
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BCU
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524224
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.31
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Rear PTO
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Rear PTO was switched on when engine was started.
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If other diagnostic trouble codes appear, one of the tractor's
sub-assemblies is either not working properly or not working at all.
Make a note of the code and contact your dealer.
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