Service Manual Manual

SECTION 6 - JLG CONTROL SYSTEM
3121171 – JLG Lift – 6-77
3339 33 39 ALTERNATOR POWER - SHORT TO BATTERY There is a Short to Battery
to the Alternator
3340 33 40 AUX POWER - SHORT TO GROUND There is a Short to Ground
to the Auxiliary Power
Pump Relay.
3341 33 41 AUX POWER - OPEN CIRCUIT There is an Open Circuit to
the Auxiliary Power Pump
Relay.
3342 33 42 AUX POWER - SHORT TO BATTERY There is a Short to Battery
to the Auxiliary Power
Pump Relay.
3343 33 43 COLD START ADVANCE SOLENOID - SHORT TO
GROUND
There is a Short to Ground
to the Cold Start Advance
Solenoid.
- CAT engines only.
3344 33 44 COLD START ADVANCE SOLENOID - OPEN CIRCUIT There is an Open Circuit to
the Cold Start Advance
Solenoid.
- CAT engines only.
3345 33 45 COLD START ADVANCE SOLENOID - SHORT TO BAT-
TERY
There is a Short to Battery
to the Cold Start Advance
Solenoid.
- CAT engines only.
3349 33 49 ELECTRIC PUMP - SHORT TO GROUND There is a Short to Ground
to the Pump Relay.
- CAT engines only.
3350 33 50 ELECTRIC PUMP - OPEN CIRCUIT There is an Open Circuit to
the Pump Relay.
- CAT engines only.
3351 33 51 ELECTRIC PUMP - SHORT TO BATTERY There is a Short to Battery
to the Pump Relay.
- CAT engines only.
3358 33 58 MAIN DUMP VALVE - SHORT TO GROUND There is a Short to Ground
to the Main Dum p Val ve.
3359 33 59 MAIN DUMP VALVE - OPEN CIRCUIT There is an Open Circuit to
the Main Dump Valve.
3360 33 60 MAIN DUMP VALVE - SHORT TO BATTERY There is a Short to Battery
to the Main Dum p Val ve.
3361 33 61 BRAKE - SHORT TO GROUND There is a Short to Ground
to the Brake Valve.
3362 33 62 START SOLENOID - SHORT TO GROUND There is a Short to Ground
to the Start Relay.
- Diesel engines only.
3363 33 63 START SOLENOID - OPEN CIRCUIT There is an Open Circuit to
the Start Relay.
- Diesel engines only.
3364 33 64 START SOLENOID - SHORT TO BATTERY There is a Short to Battery
to the Start Relay.
- Diesel engines only.
3368 33 68 TWO SPEED VALVE - SHORT TO GROUND There is a Short to Ground
to the Two Speed Valve.
3369 33 69 TWO SPEED VALVE - OPEN CIRCUIT There is an Open Circuit to
the Two Speed Valve.
3370 33 70 TWO SPEED VALVE - SHORT TO BATTERY There is a Short to Battery
to the Two Speed Valve.
3371 33 71 GROUND ALARM - SHORT TO GROUND There is a Short to Ground
to the Ground Alarm.
- Ground Alarm equipped
vehicles only.
Table 6-6. Diagnostic Trouble Code Chart
DTC
Flash
Code
Sequence
Fault Message Fault Description Check