SECTION 5 - JLG CONTROL SYSTEM
5-10
31215079
232
2
3 "Ground Lift Up/down Active Together"
• Ground lift up and lift down inputs both closed. The control system
prevents lifting and lowering.
• Check if the Ground lift switch is damaged, obstructed, or jammed.
• Check Ground input J4-7 (should be low when lift up is not selected).
• Check Ground input J4-8 (should be low when lift down is not
selected).
241
2
4 "Ambient Temperature Sensor - Out Of Range Low"
• The temperature is below the allowed minimum value. The control sys-
tem prevents lift up. The control system limits driving to turtle speed if
elevated.
• Check the wires to the Chassis Tilt Sensor.
• Replace the Chassis Tilt Sensor (also sends temperature).
242
2
4 "Ambient Temperature Sensor - Out Of Range High"
• The temperature is above the allowed maximum value. The control
system prevents lift up. The control system limits driving to turtle
speed if elevated.
• Check the wires to the Chassis Tilt Sensor.
• Replace the Chassis Tilt Sensor (also sends temperature).
243
2
4 "Front Left Leveling Jack Pressure Transducer Failure"
• Front Left Leveling Jack pressure transducer reading is outside of the
allowed range.
• Check the wiring to the Front Left Leveling Jack pressure transducer.
244
2
4 "Front Right Leveling Jack Pressure Transducer Failure"
• Front Right Leveling Jack pressure transducer reading is outside of the
allowed range.
• Check the wiring to the Front Right Leveling Jack pressure transducer.
245
2
4 "Rear Left Leveling Jack Pressure Transducer Failure"
• Rear Left Leveling Jack pressure transducer reading is outside of the
allowed range.
• Check the wiring to the Rear Left Leveling Jack pressure transducer.
246
2
4 "Rear Right Leveling Jack Pressure Transducer Failure"
• Rear Right Leveling Jack pressure transducer reading is outside of the
allowed range.
• Check the wiring to the Rear Right Leveling Jack pressure transducer.
247
2
4 "Front Left Leveling Jack Stow Switch Faulty "
• Front Left Outrigger stow switch is closed (digital input is high) while
all Leveling Jacks are set.
248
2
4 "Front Right Leveling Jack Stow Switch Faulty"
• Front Right Outrigger stow switch is closed (digital input is high) while
all Leveling Jacks are set.
249
2
4 "Rear Left Leveling Jack Stow Switch Faulty"
• Rear Left Outrigger stow switch is closed (digital input is high) while all
Leveling Jacks are set.
251
2
5 "Elev Angle Sensor Faulty - Not Mounted or Voltage Out Of Range"
• Elevation angle sensor's voltage is > 4.85V or < 0.30V.
252
2
5 "Elev Angle Sensors Have Not Been Calibrated"
• The EEPROM value for Arm Stack Arm Angle and Rotary Sensor values
for Stowed are default EEPROM values.
2111
2
1 "Engine Start Prevented - Platform Start Switch High At Power Up"
• Start switch is closed during power up.
2210
2
2 "Trigger Closed Too Long While In Neutral"
• Trigger has been squeezed for 10 seconds while the joystick was in the
center position.
• Check the Platform Trigger input J1-1 (should be high when trigger is
squeezed).
2232
2
2 "Function Locked Out - Drive & Lift Both Open"
• The Platform Drive and Lift inputs are both open. The control system
prevents any function selects.
• Check Platform inputs J1-3 (should be high in drive mode) and J1-4
(should be high in lift mode).
2237
2
2 "Joystick Faulty - Steer Switches Active Together"
• Steer switch inputs are both closed at the same time.
DTC
Code
Flash
Code
Description
Item Check List
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