Drive Enable Solenoid Short To Ground Or Open Circuit; Drive Left Forward Solenoid Open Circuit - JLG T350 Troubleshooting Manual

SECTION 2 - TROUBLESHOOTING BY FAULT MESSAGES

2.24 DRIVE ENABLE SOLENOID SHORT TO GROUND OR OPEN CIRCUIT

Distress Lamp: 9
Drive module feedback shows that the Drive Enable Valve PWM output may be disconnected, shorted to ground, or the sole-
noid may be defective.
DRIVE OPTION MACHINES ONLY
Step Pretest Instructions
2.24.1 Disconnect solenoid at X071
and measure resistance
2.24.2 Remove wire Orn 55-1 from
X074.11

2.25 DRIVE LEFT FORWARD SOLENOID OPEN CIRCUIT

Distress Lamp: 9
Drive module feedback shows that the Drive Left Forward Valve PWM output may be disconnected or the solenoid may be
defective.
DRIVE OPTION MACHINES ONLY
Functions Disabled (Drive Option Machines Only): Drive Left Forward
Step Pretest Instructions
2.25.1 Run system test
2.25.2 Short X067.1.soc to
X067.2.soc
2.25.3 Replace X074.7 with a jumper
to X074.2
2-52
ADE Code: 3-3
Test
Is the solenoid resistance
7.2 Ohms?
Is X074.11.soc shorted or
open to X074.2.soc?
ADE Code: 3-3
Test
Do other functions fail sys-
tem test?
Rerun System Test
Rerun System Test
T350 T500J
Result
Yes
No
Yes - Open
Yes-Short to Ground
No
Result
Yes
No
Analyzer Message "DRV LEFT
FWD VALVE SHORT TO
GROUND"
Analyzer Message "DRV LEFT
FWD VALVE OPEN CIRCUIT"
Analyzer Message "DRV LEFT
FWD VALVE SHORT TO
GROUND"
Analyzer Message "DRV LEFT
FWD VALVE OPEN CIRCUIT"
Corrective Action
Go to step 2.24.2
Repair/Replace solenoid
Possible Causes: Open in Orn 55-1 or
Black or Red/Blk boom wire. Repair or
replace
Possible Causes: Wire Orn 55-1
shorted to ground. Repair or replace
Possible Cause: 4.1.1, 4.1.10
Corrective Action
Possible Cause: Black ground wire
broken, 4.1.1, otherwise
Go to step 2.25.2
Go to step 2.25.2
Replace solenoid and/or connector
Go to step 2.25.3
Wire Orn 7-4 broken. Repair or replace
Possible Cause: 4.1.10
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