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SECTION 1 - JLG SMART SYSTEM ™ ANALYZER KIT INSTRUCTIONS (1600258 CONTROLLER).
NOTE: Whenever troubleshooting a problem on an E series scissor lift, it may be necessary to use a digital VOM (volt ohm
meter) in addition to the analyzer or the PC/laptop computer. NEVER use a test light when troubleshooting an E series
scissor lift. ALWAYS disconnect the batteries when replacing parts.
TROUBLE
Machine Functions
All Machine Functions Do Not Operate
1-12
Table 1-6. JLG SMART System™ Troubleshooting
PROBABLE CAUSE
Emergency Stop switch not activated.
Joystick not in neutral position.(flash code 2-7)
Joystick potentiometer not centered.
Idle time-out. (flash code 1-1)
MUX STREAM NOT BEING UPDATED.(FLASH
CODE 9-3)
No power to the multiplexer card in the platform.
Platform cable not connected to platform box or
SMART Systemat base (J2).
Faulty multiplexer card.
BATTERY VOLTAGE OUT OF RANGE.(FLASH
CODE 4-4)
If battery charger is plugged in, voltage of batteries
may be above 31 Volts
Battery voltage too low.
LINE CONTACTOR OPEN CIRCUIT.(FLASH
CODE 3-1)
Loose wiring connections on line contactor or at
harness connection J1
Open contact on line contactor.
Faulty wiring at J1.
Line contactor welded. (flash code 3-1)
– JLG Sizzor –
REMEDY
Activate Emergency Stop switch and wait for
flash of LED's.
Release joystick, then select function.
Use analyzer to verify potentiometer is cen-
tered. (Axel should be 0) Replace joystick
Select function again.
Use voltmeter to verify power on J4 of the multi-
plexer board.
Re-connect cable to platform box or J2.
Replace multiplexer card.
Check voltage with VOM. Unplug battery
charger.
Check voltage with VOM. Plug in battery
charger.
Check wire terminations on line contactor and
harness connection at J1.Tighten connections
as necessary.
Clean corrosion from line contactor.
Replace line contactor.
Repair or replace wiring as necessary.
Replace line contactor.
3120442
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