Power Module Failure: Check Power Circuits Or Mosfet Short Circuit; Power Module Failure: Internal Error - JLG T350 Troubleshooting Manual

SECTION 2 - TROUBLESHOOTING BY FAULT MESSAGES
Step Pretest Instructions
2.124.4 Remove X058.J. With t he
console in the platform posi-
tion, pull the ground and plat-
form emergency stop
switches and place key switch
in the platform position
2.124.5 Remove X059.J. With t he
console in the platform posi-
tion, pull the ground and plat-
form emergency stop
switches and place key switch
in the platform position
2.124.6 With t he console in the plat-
form position, pull the ground
and platform emergency stop
switches and place key switch
in the platform position
2.124.7 With t he console in the plat-
form position, pull the ground
and platform emergency stop
switches and place key switch
in the platform position
2.124.8 With t he console in the plat-
form position, pull the ground
and platform emergency stop
switches and place key switch
in the platform position

2.125 POWER MODULE FAILURE: CHECK POWER CIRCUITS OR MOSFET SHORT CIRCUIT

Distress Lamp: 9
The Power Module detected an error in the Power Wiring for the Pump. Alternately, the Power Module has failed a self-test.
Check wiring and motor or replace the Power Module. Re-cycle power to clear difficulty.
3 Flashes on Power Module may indicate a Short-Circuit in the Armature Wiring or a faulty Power Module
No Flashes on Power Module may indicate a faulty Power Module
Functions Disabled (Electric Powered Machines Only): Lift Up, Swing Left, Swing Right, Telescope In, Telescope Out, Jib Up,
Level Up, Level Down, Front Left O/R, Front Right O/R, Rear Left O/R, Rear Right O/R, Set (Extend O/R), Stow (Retract O/R)
Check all power wiring, see Power Module Electrical Evaluation and Pump Motor Electrical Evaluation in 3.3 DC Powered
Machine - Power Module.
Possible Cause: Pump Wiring Shorted, 4.1.39, 4.1.12

2.126 POWER MODULE FAILURE: INTERNAL ERROR

Distress Lamp: 9
The Power Module detected an internal error. Alternately, the Power Module has failed a self-test. Check all power wiring, see
Power Module Electrical Evaluation and Pump Motor Electrical Evaluation in 3.3 DC Powered Machine - Power Module. Re-
cycle power to clear difficulty.
Functions Disabled (Electric Powered Machines Only): Lift Up, Swing Left, Swing Right, Telescope In, Telescope Out, Jib Up,
Level Up, Level Down, Front Left O/R, Front Right O/R, Rear Left O/R, Rear Right O/R, Set (Extend O/R), Stow (Retract O/R)
Possible Causes: Line Contactor solenoid is Open-Circuit in Power Module's prior to V1.10, a Power Wiring Issue, 4.1.12
2-98
Test
Is the voltage on X058.J.soc
= VBatt?
Is the voltage on X059.J.soc
= VBatt?
Is the voltage on X054.9 =
VBatt?
Is the voltage on X058.K =
VBatt?
Is the voltage on X059.K =
VBatt?
ADE Code: 9-9
ADE Code: 9-9
T350 T500J
Result
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Corrective Action
Go to step 2.124.5
Possible Cause: Shorted Blu/Blk
between X058 and X054
Possible Cause: Shorted Blu/Blk
between X059.J and X059.H
Possible Cause: Shorted Blu/Blk
between X059 and X058
Possible Cause: Broken Orn/Blk wire
between X054 and X019
Go to step 2.124.7
Possible Cause: Broken Orn/Blk wire
between X058 and X054
Go to step 2.124.8
Possible Cause: Broken Orn/Blk wire
between X059 and X058
Possible Cause: Broken Orn/Blk wire
between X059.K and X059.D, or see
3.13 Platform Module - Power
3121203