Case 1021F, Operator'S Manual

Page: 123 / 366

3 - CONTROLS AND INSTRUMENTS
WARNING DISPLAY AND ERRORS
JOYSTICK STEERING RELATED ERROR
HANDLING
All JSS related errors will be displayed only while the JSS
activation switch is in ON position except for the red er-
ror “Short to power on power supply” and the failure of
the activation switch which will be always displayed when
present.
All JSS related errors will be reset by switching the JSS
activation switch to the OFF position.
While ignition is ON and JSS is deactivated the software
will check if the JSS Power Supply is off. Check JSS
Output Control is low/open → if not a red error will be
displayed “Short on JSS power supply JSS active”.
Error
Item
Location
of Error
Detection
Message
1812y
JSC Open Circuit, Short to Battery or Short to Ground at JSS armrest switch.
1816y JSC Open Circuit / JSS activation switch mechanical defect.
1820y JSC Check JSS Relay, JSS Valve, JSS Joystick power supply connections.
1821r JSC Short to ground on JSS Relay 85/AIC1.21 or short to Power on Relay 86/87a. Or
Activation Switch failure.
1823y JSC JSS RELAY, GROUND CONNECT., BAD ELEC. CONNCT. Permanent ground at
JSS Relay (87) open circuit or short to power.
1824y JSC Short to battery at activation button. Activation switch failure.
1829y
JSC Joystick Steering is not calibrated.
1830y JSC Open circuit between activation switch Pin 3 and C5.E Pin 1.
1831y JSC JSC CONTROLLER, WRONG OPERATION. JSC controller internal fault.
1832y JSC JSC CONTROLLER, JSC SIGNAL IN, OUT OF LIMITS. Input signal from JSS
joystick to JSC controller out of limits. (Joystick Neutral: USignal>40%UBat +
<60%Ubat; Joystick Actuated: USignal>20%UBat + <80%UBat)
1833y JSC Output signal from JSC controller to valve out of limits. Check connector of JSS
valve and JSC controller.
1834y JSC JSS CONTROLLER, JSC OUTPUT, SC to BAT Power is applied to one of the
JSC controller outputs. Check electrical connection for short to power. Or JSC
internal Relay is defect.
1835y AIC JSS-valve/Pin4 JSC/Pin5 short to power, short to ground or open circuit.
1836y JSC JSS CONTROLLER, BOARD TEMPERATURE, OUT OF LIMITS Temperature on
the JSC board is <-40°C or >+85°C; Check ambient temperature or short circuit
at JSC power outputs.
1837y JSC JSS CONTROLLER, SWITCHED POWER, OUT OF LIMITS Switched power
supply at JSC Pin3 is out of limit; Check elect connection for electrical transients,
burst or drifts.
1838y
JSC Neutral Sw out of range.
1841y JSC JSS valve internal error, spool position not accurate or signal voltage out of range.
1842y JSC JSS valve Pin2 (alarm signal) open circuit.
1843y JSC Pilot pressure switch open when JSS is deactivated. High pilot pressure on JSS
valve even when JSS is not active. Pilot Dump valve stuck close or short to
power on valve power supply. Or open circuit on JSS pilot pressure switch lines
or JSC/Pin8.
1844y JSC Pilot pressure switch short to ground.
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