Choke Hold Solenoid Short To Ground; Choke Pull Relay Open Circuit - JLG T350 Troubleshooting Manual

SECTION 2 - TROUBLESHOOTING BY FAULT MESSAGES

2.16 CHOKE HOLD SOLENOID SHORT TO GROUND

Distress Lamp: 9
Ground module feedback shows that the Engine Choke Hold digital output may be shorted to ground or solenoid may be
defective
ENGINE POWERED MACHINES ONLY
Functions Disabled (Engine Powered Machines Only): Engine Choke Hold
Step Pretest Instructions
2.16.1 Disconnect solenoid at X098
and isolate wires
2.16.2 Remove wire WHT/YEL 48-5
from X003.7

2.17 CHOKE PULL RELAY OPEN CIRCUIT

Distress Lamp: 9
Ground module feedback shows that the Engine Choke Pull digital output may be disconnected from the relay or the relay
may be defective.
ENGINE POWERED MACHINES ONLY
Functions Disabled (Engine Powered Machines Only): Engine Choke Pull
Step Pretest Instructions
2.17.1 Run system test
2.17.2 Disconnect relay at X093. At
harness end, short X093.86
WHT/YEL 48-4 to X093.85
BLACK wire
2.17.3 Replace X003.4 with a jumper
to X003.3
2-48
ADE Code: 3-3
Test
Rerun System Test
Rerun System Test
ADE Code: 3-3
Test
Do other functions fail sys-
tem test?
Rerun System Test
Rerun System Test
T350 T500J
Result
Analyzer Message "CHOKE
HOLD SOLENOID OPEN CIR-
CUIT"
Analyzer Message "CHOKE
HOLD SOLENOID SHORT TO
GROUND"
Analyzer Message "CHOKE
HOLD SOLENOID OPEN CIR-
CUIT"
Analyzer Message "CHOKE
HOLD SOLENOID SHORT TO
GROUND"
Result
Yes
No
Analyzer Message "CHOKE PULL
RELAY SHORT TO GROUND"
Analyzer Message "CHOKE PULL
RELAY OPEN CIRCUIT"
Analyzer Message "CHOKE PULL
RELAY SHORT TO GROUND"
Analyzer Message "CHOKE PULL
RELAY OPEN CIRCUIT"
Corrective Action
Repair/Replace solenoid
Go to step 2.16.2
Wire WHT/YEL 48-5 shorted to
ground. Repair or replace
Possible Cause: 4.1.10
Corrective Action
Check: 4.1.15, 4.1.1, otherwise go to
step 2.17.2
Go to step 2.17.2
Replace solenoid and/or connector
Go to step 2.17.3
Wire WHT/YEL 48-4 broken. Repair or
replace
Possible Cause: 4.1.10
3121203