SECTION 5 - JLG CONTROL SYSTEM
31215923
5-25
33781 3
3 "Rear Left Oscillating Axle Unlock Valve -
Short To Ground"
Lift Up and Quik Level Prevented.
Drive Prevented when Machine is
Elevated.
Drive Restricted to Elevated Speed
when Machine is Stowed.
• UGM Detects that the RL OSC Axle Unlock Valve (J2-5) is
reading a Short to Ground Circuit.
• Check valve connector for damage or faulty wiring.
33782 3
3 "Rear Left Oscillating Axle Unlock Valve -
Open Circuit"
Lift Up and Quik Level Prevented.
Drive Prevented when Machine is
Elevated.
Drive Restricted to Elevated Speed
when Machine is Stowed.
• UGM Detects that the RL OSC Axle Unlock Valve (J2-5) is
reading as an Open Circuit.
• Check valve connector for damage or faulty wiring.
33783 3
3 "Rear Right Oscillating Axle Unlock Valve -
Short To Battery"
Lift Up and Quik Level Prevented.
Drive Prevented when Machine is
Elevated.
Drive Restricted to Elevated Speed
when Machine is Stowed.
• UGM Detects that the RR OSC Axle Unlock Valve (J2-4) is
reading a Short to Battery Circuit.
• Check valve connector for damage or faulty wiring.
33784 3
3 "Rear Right Oscillating Axle Unlock Valve -
Short To Ground"
Lift Up and Quik Level Prevented.
Drive Prevented when Machine is
Elevated.
Drive Restricted to Elevated Speed
when Machine is Stowed.
• UGM Detects that the RR OSC Axle Unlock Valve (J2-4) is
reading a Short to Ground Circuit.
• Check valve connector for damage or faulty wiring.
33785 3
3 "Rear Right Oscillating Axle Unlock Valve -
Open Circuit"
Lift Up and Quik Level Prevented.
Drive Prevented when Machine is
Elevated.
Drive Restricted to Elevated Speed
when Machine is Stowed.
• UGM Detects that the RR OSC Axle Unlock Valve (J2-4) is
reading as an Open Circuit.
• Check valve connector for damage or faulty wiring.
33786 3
3 "Rear Left Oscillating Axle Extend Valve -
Short To Battery"
Lift Up and Quik Level Prevented.
Drive is prevented if the Machine is
Not Stowed.
• UGM Detects that the Rear Left OSC Axle Extend Valve (J2-
19) is reading a Short to Battery Circuit.
• Check valve connector for damage or faulty wiring.
33787 3
3 "Rear Left Oscillating Axle Extend Valve -
Short To Ground"
Lift Up and Quik Level Prevented.
Drive is prevented if the Machine is
Not Stowed.
• UGM Detects that the Rear Left OSC Axle Extend Valve (J2-
19) is reading a Short to Ground Circuit.
• Check valve connector for damage or faulty wiring.
33788 3
3 "Rear Left Oscillating Axle Extend Valve -
Open Circuit"
Lift Up and Quik Level Prevented.
Drive is prevented if the Machine is
Not Stowed.
• UGM Detects that the Rear Left OSC Axle Extend Valve (J2-
19) is reading as an Open Circuit.
• Check valve connector for damage or faulty wiring.
33789 3
3 "Rear Right Oscillating Axle Extend Valve -
Short To Battery"
Lift Up and Quik Level Prevented.
Drive is prevented if the Machine is
Not Stowed.
• UGM Detects that the Rear Right OSC Axle Extend Valve (J2-
20) is reading a Short to Battery Circuit.
• Check valve connector for damage or faulty wiring.
33790 3
3 Rear Right Oscillating Axle Extend Valve -
Short to Ground
Lift Up and Quik Level Prevented.
Drive is prevented if the Machine is
Not Stowed.
• UGM Detects that the Rear Right OSC Axle Extend Valve (J2-
20) is reading a Short to Ground Circuit.
• Check valve connector for damage or faulty wiring.
33791 3
3 "Rear Right Oscillating Axle Extend Valve -
Open Circuit"
Lift Up and Quik Level Prevented.
Drive is prevented if the Machine is
Not Stowed.
• UGM Detects that the Rear Right OSC Axle Extend Valve (J2-
20) is reading as an Open Circuit.
• Check valve connector for damage or faulty wiring.
33792 3
3 "Rear Axle Enable Valve - Short To Battery" No Response.
• UGM Detects that the Rear Axle Enable Valve (J2-11) is read-
ing a Short to Battery Circuit.
• Check valve connector for damage or faulty wiring.
33793 3
3 "Rear Axle Enable Valve - Short To Ground" Lift Up Prevented.
• UGM Detects that the Rear Axle Enable Valve (J2-11) is read-
ing a Short to Ground Circuit.
• Check valve connector for damage or faulty wiring.
DTC
Code
Flash
Code
Description
Action
Item Check List
Summary of Contents for ERT2669
Page 2: ......
Page 4: ...INTRODUCTION A 2 31215923 REVISON LOG Original Issue A January 08 2021...
Page 12: ...viii 31215923 TABLE OF CONTENTS...
Page 40: ...SECTION 1 SPECIFICATIONS 1 22 31215923...
Page 58: ...SECTION 2 GENERAL 2 18 31215923...
Page 187: ...SECTION 4 BASIC HYDRAULIC INFORMATION SCHEMATICS 31215923 4 11...
Page 206: ...SECTION 4 BASIC HYDRAULIC INFORMATION SCHEMATICS 4 30 31215923...
Page 225: ...SECTION 4 BASIC HYDRAULIC INFORMATION SCHEMATICS 31215923 4 49...
Page 242: ...SECTION 4 BASIC HYDRAULIC INFORMATION SCHEMATICS 4 66 31215923...
Page 307: ...SECTION 5 JLG CONTROL SYSTEM 31215923 5 65...
Page 334: ...SECTION 6 LSS SETUP CALIBRATION SERVICE 6 12 31215923...
Page 362: ...SECTION 7 GENERAL ELECTRICAL INFORMATION SCHEMATICS 7 28 31215923...
Page 374: ...SECTION 7 GENERAL ELECTRICAL INFORMATION SCHEMATICS 7 40 31215923...
Page 375: ......