JLG 1250AJP Service Manual User Manual

Page 526

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SECTION 6 - JLG CONTROL SYSTEM

6-94

– JLG Lift –

3121171

859

85

9

LOAD PIN/TOWER LIFT CYLINDER ANGLE DISAGREE-
MENT

There is a disagreement
between the Load Pin and
the Tower Lift cylinder
Angle.

-1250

8510

85

10

LOAD PIN - FORCE VALUES NOT CHANGING

The Load Pin is not chang-
ing.

-1250

8511

85

11

LOAD PIN - FORCE TOO LOW OVER TOWER ANGLE
CHANGE

Load pin force did not
change enough for the
tower angle movement.

-1250

8512

85

12

LOAD PIN - FORCE TOO LOW OVER MAIN ANGLE
CHANGE

Load pin force did not
change enough for the
main angle movement.

-1250

8513

85

13

LOAD PIN - FORCE TOO LOW OVER MAIN LENGTH TRAN-
SITION

Load Pin force did not
change enough for main
length movement.

-1250

860

86

0

<<< STEERING / AXLE >>>

861

86

1

RESTRICTED TO TRANSPORT - OSCILLATING AXLE
PRESSURE SWITCH DISAGREEMENT

The Oscillating Axle Pres-
sure Switch indicates pres-
sure while not driving or
does not indicate pressure
while driving and restricted
to transport.

- Electrically released Oscil-
lated Axles equipped vehi-
cles only.

862

86

2

AXLE EXTEND VALVE - SHORT TO BATTERY OR OPEN
CIRCUIT

There is a Short to Battery
or an Open Circuit to the
Axle Extend Valve.

863

86

3

AXLE EXTEND VALVE - SHORT TO GROUND

There is a Short to Ground
to the Axle Extend Valve.

864

86

4

AXLE RETRACT VALVE - SHORT TO BATTERY OR OPEN
CIRCUIT

There is a Short to Battery
or an Open Circuit to the
Axle Retract Valve.

865

86

5

AXLE RETRACT VALVE - SHORT TO GROUND

There is a Short to Ground
to the Axle Retract Valve.

866

86

6

RIGHT FRONT STEER RIGHT VALVE - SHORT TO BAT-
TERY OR OPEN CIRCUIT

There is a Short to Battery
or an Open Circuit to the
Right Front Steer Right
Valve.

867

86

7

RIGHT FRONT STEER RIGHT VALVE - SHORT TO
GROUND

There is a Short to Ground
to the Right Front Steer
Right Valve.

868

86

8

RIGHT FRONT STEER LEFT VALVE - SHORT TO BATTERY
OR OPEN CIRCUIT

There is a Short to Battery
or an Open Circuit to the
Right Front Steer Left
Valve.

869

86

9

RIGHT FRONT STEER LEFT VALVE - SHORT TO GROUND There is a Short to Ground

to the Right Front Steer Left
Valve.

Table 6-6. Diagnostic Trouble Code Chart

DTC

Flash

Code

Sequence

Fault Message

Fault Description

Check

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