JLG 1850SJ Service Manual User Manual

Page 351

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SECTION 6 - JLG CONTROL SYSTEM

3121619

– JLG Lift –

6-69

SPEED SENSOR READING INVALID SPEED

4

3

4323

✔

✔

✔

✔

✔

SOOT LOAD WARNING - LOW

4

3

4331

✔

✔

✔

✔

✔

SOOT LOAD WARNING - HIGH

4

3

4332

✔

✔

✔

✔

✔

SOOT LOAD WARNING - SEVERE

4

3

4333

✔

✔

✔

✔

✔

ENGINE COOLANT - LOW LEVEL

4

3

4334

✔

✔

✔

✔

✔

BATTERY VOLTAGE TOO LOW - SYSTEM SHUTDOWN

4

4

441

✔

✔

✔

✔

✔

BATTERY VOLTAGE TOO HIGH - SYSTEM SHUTDOWN

4

4

442

✔

✔

✔

✔

✔

LSS BATTERY VOLTAGE TOO HIGH

4

4

443

✔

✔

✔

✔

✔

LSS BATTERY VOLTAGE TOO LOW

4

4

444

✔

✔

✔

✔

✔

BATTERY VOLTAGE LOW

4

4

445

✔

✔

✔

✔

✔

MAIN LIFT PVG VALVE - INTERNAL FAULT

4

5

451

- -

- -

✔

- -

- -

TOWER LIFT PVG VALVE - INTERNAL FAULT

4

5

452

- -

- -

✔

- -

- -

TOWER TELESCOPE PVG VALVE - INTERNAL FAULT

4

5

453

- -

- -

✔

- -

- -

MAIN LIFT PVG VALVE - HIGH VOLTAGE

4

5

454

- -

- -

✔

- -

- -

TOWER LIFT PVG VALVE - HIGH VOLTAGE

4

5

455

- -

- -

✔

- -

- -

TOWER TELESCOPE PVG VALVE - HIGH VOLTAGE

4

5

456

- -

- -

✔

- -

- -

MAIN LIFT PVG VALVE - LOW VOLTAGE

4

5

457

- -

- -

✔

- -

- -

TOWER LIFT PVG VALVE - LOW VOLTAGE

4

5

458

- -

- -

✔

- -

- -

TOWER TELESCOPE PVG VALVE - LOW VOLTAGE

4

5

459

- -

- -

✔

- -

- -

MAIN LIFT PVG VALVE - STUCK NEUTRAL

4

5

4510

- -

- -

✔

- -

- -

TOWER LIFT PVG VALVE - STUCK NEUTRAL

4

5

4511

- -

- -

✔

- -

- -

TOWER TELESCOPE PVG VALVE - STUCK NEUTRAL

4

5

4512

- -

- -

✔

- -

- -

MAIN LIFT PVG VALVE - STUCK EXTENDED

4

5

4513

- -

- -

✔

- -

- -

TOWER LIFT PVG VALVE - STUCK EXTENDED

4

5

4514

- -

- -

✔

- -

- -

TOWER TELESCOPE PVG VALVE - STUCK EXTENDED

4

5

4515

- -

- -

✔

- -

- -

MAIN LIFT PVG VALVE - STUCK RETRACTED

4

5

4516

- -

- -

✔

- -

- -

TOWER LIFT PVG VALVE - STUCK RETRACTED

4

5

4517

- -

- -

✔

- -

- -

TOWER TELESCOPE PVG VALVE - STUCK RETRACTED

4

5

4518

- -

- -

✔

- -

- -

MAIN LIFT PVG VALVE - OBSTRUCTED

4

5

4519

- -

- -

✔

- -

- -

TOWER LIFT PVG VALVE - OBSTRUCTED

4

5

4520

- -

- -

✔

- -

- -

TOWER TELESCOPE PVG VALVE - OBSTRUCTED

4

5

4521

- -

- -

✔

- -

- -

MAIN LIFT PVG VALVE - COMMAND IMPROPER

4

5

4522

- -

- -

✔

- -

- -

TOWER LIFT PVG VALVE - COMMAND IMPROPER

4

5

4523

- -

- -

✔

- -

- -

Table 6-7. Diagnostic Fault Code Chart

Fault Text

Flash 1

Flash 2

DTC

1350

1200

1250

1500

1850

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