Throttle Pull Relay Short To Ground; Trigger Closed Too Long While In Neutral - JLG T350 Troubleshooting Manual

SECTION 2 - TROUBLESHOOTING BY FAULT MESSAGES

2.163 THROTTLE PULL RELAY SHORT TO GROUND

Distress Lamp: 9
Ground module feedback shows that the Engine Throttle Pull digital output may be shorted to ground or the relay may be
defective.
ENGINE POWERED MACHINES ONLY
Functions Disabled (Engine Powered Machines Only): Engine Throttle Pull
Step Pretest Instructions
2.163.1 Disconnect solenoid at X091
and isolate wires
2.163.2 Remove wire WHT/YEL 48-2
from X003.9

2.164 TRIGGER CLOSED TOO LONG WHILE IN NEUTRAL

Distress Lamp: 1
The Trigger Switch in the Platform Control Box was closed for more than seven seconds while the Joystick was in the neutral
position (centered). Release switch or repair the switch / wiring to clear the difficulty.
Functions Disabled at Platform Only: Lift Up, Lift Down, Swing Left, Swing Right, Telescope In, Telescope Out, Jib Up, Jib
Down, 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)
Step Pretest Instructions
2.164.1
2.164.2 Switch Key to Platform Mode
and pull the ground and plat-
form emergency stop
switches. Turn the select
switch to the Lift/Swing Posi-
tion. Do NOT hold the joystick.
2-116
ADE Code: 3-3
Test
Rerun System Test
Rerun System Test
ADE Code: 2-2
Test
Was the switch held for more
than 7 seconds?
Analyzer DIAGNOSTICS ->
PLATFORM ->
T350 T500J
Result
Analyzer Message "THROTTLE
PULL RELAY OPEN CIRCUIT"
Analyzer Message "THROTTLE
PULL RELAY SHORT TO
GROUND"
Analyzer Message "THROTTLE
PULL RELAY OPEN CIRCUIT"
Analyzer Message "THROTTLE
PULL RELAY SHORT TO
GROUND"
Result
Yes
No
"LIFT/SWING SEL"
"LEVEL SELECT"
"JIB/TELE SELECT"
"TRIGGER OPEN"
Corrective Action
Repair/Replace solenoid
Go to step 2.163.2
Wire WHT/YEL 48-2 shorted to
ground. Repair or replace
Possible Cause: 4.1.10
Corrective Action
Release switch and try again
Go to step 2.164.2
Possible Cause: 4.1.19, 4.1.18,
Shorted Yel/Red2-17, 4.1.22, 4.1.11
See 2.72 Function Problem - Rotary
Selector Switch
See 2.72 Function Problem - Rotary
Selector Switch
See 2.72 Function Problem - Rotary
Selector Switch
3121203