JLG ERT2669, Service And Maintenance Manual

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SECTION 5 - JLG CONTROL SYSTEM
31215923 5-27
3525 3 5 "Rear Left Leveling Jack Open Circuit" No Response. • UGM Detects that the RL Leveling Jack Valve (J2-21) is read-
ing as an Open Circuit.
• Check valve connector for damage or faulty wiring.
3526 3 5 "Rear Right Leveling Jack Short to
Ground"
No Response. • UGM Detects that the RR Leveling Jack Valve (J2-23) is read-
ing a Short to Ground Circuit.
• Check valve connector for damage or faulty wiring.
3527 3 5 "Rear Right Leveling Jack Short to Bat-
tery"
Lift Up and Drive Prevented. • UGM Detects that the RR Leveling Jack Valve (J2-23) is read-
ing a Short to Battery Circuit.
• Check valve connector for damage or faulty wiring.
3528 3 5 “Rear Right Leveling Jack Open Circuit” No Response. • UGM Detects that the RR Leveling Jack Valve (J2-23) is read-
ing as an Open Circuit.
• Check valve connector for damage or faulty wiring.
3529 3 5 “Leveling Jack Extend Valve Short to
Ground”
No Response. • UGM Detects that the Leveling Jack Extend Valve (J2-32) is
reading a Short to Ground Circuit.
• Check valve connector for damage or faulty wiring.
3530 3 5 “Leveling Jack Extend Valve Short to Bat-
tery”
Leveling Jack Extend Functionality
Prevented. • UGM Detects that the Leveling Jack Extend Valve (J2-32) is
reading a Short to Battery Circuit.
• Check valve connector for damage or faulty wiring.
3531 3 5 “Leveling Jack Extend Valve Open Circuit” No Response. • UGM Detects that the Leveling Jack Extend Valve (J2-32) is
reading as an Open Circuit.
• Check valve connector for damage or faulty wiring.
3532 3 5 “Leveling Jack Retract Valve Short to
Ground”
Leveling Jack Extend Functionality
Prevented. • UGM Detects that the Leveling Jack Retract Valve (J2-15) is
reading a Short to Ground Circuit.
• Check valve connector for damage or faulty wiring.
3533 3 5 “Leveling Jack Retract Valve Short to Bat-
tery”
No Response. • UGM Detects that the Leveling Jack Retract Valve (J2-15) is
reading a Short to Battery Circuit.
• Check valve connector for damage or faulty wiring.
3534 3 5 “Leveling Jack Retract Valve Open Circuit” Leveling Jack Extend Functionality
Prevented.
• UGM Detects that the Leveling Jack Retract Valve (J2-15) is
reading as an Open Circuit.
• Check valve connector for damage or faulty wiring.
4234 4 2 "Driving At Cutback - Hydraulic Oil Tem-
perature Too High"
High Drive Speed is Prevented. • The Machine's Hydraulic Oil Temperature Sensor is reading
that the Hydraulic Oil Temperature is Higher than 194°F
(90°C)
4310 4 3 “No Alternator Output” No Response. • The GM is detecting that the System Voltage is less than
11.5V.
• Check functionality of Alternator and Alternator wiring.
4311 4 3 “Oil Pressure Low” Engine Will Shutdown. • The Kubota ECU is detecting the Oil Pressure Switch state is
ON while the Engine is Running.
• Check the Oil Pressure switch and wiring harness for dam-
age.
437 4 3 “Engine Trouble Code (158:3 - Battery
Voltage High) “
No Response. • ECU is detecting a battery voltage higher than 18V.
• Check harness for damage, open/short circuit or battery fail-
ure
437 4 3 “Engine Trouble Code (110:3 - Engine
Coolant Sensor Voltage High)”
Engine Will Shutdown. • ECU is detecting the Coolant Temp Sensor Voltage is greater
than or equal to 4.9V.
• Check sensor for an Open Circuit or Short to Battery.
437 4 3 "Engine Trouble Code (110:4 - Engine
Coolant Sensor Voltage Low)”
Engine Will Shutdown. • ECU is detecting the Coolant Temp Sensor Voltage is less
than 0.1V.
• Check sensor for a Short to Ground.
DTC
Code
Flash
Code
Description Action Item Check List