Service Manual Instruction Manual

SECTION 6 - JLG CONTROL SYSTEM
3121171 – JLG Lift – 6-77
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 3 3 4 4 C OL D S TA RT ADVA NC E S OL ENO ID - OPE N C IRCU IT T he re is an Open Ci rc ui t to the
Cold Start Advance Solenoid.
- CAT engines only.
3345 33 45 COLD START ADVANCE SOLENOID - SHORT TO BATTERY 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 - O PE N C IR CU IT Th ere is an Open Circ ui t t o t he
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 Dump Valve.
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 Dump Valve.
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 Spe ed Val ve.
3369 33 69 TWO SPEED VALVE - OPEN CIRCUIT Th ere is an O pen Ci rc ui t t o th e
Two Spe ed Val ve.
3370 33 70 TWO SPEED VALVE - SHORT TO BATTERY There is a Short to Battery to the
Two Spe ed Val ve.
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