SECTION 6 - LSS (LOAD SENSING SYSTEM) SERVICE
6-10
3121788
LIFT CYLINDER HEAD PRESSURE 1 – OUT OF
RANGE LOW (8524)
Pressure1RawValue is less than 3.5mA for 500mS.
Only applicable if {MACHINE SETUP-> LOAD = CUTOUT ALL or CUTOUT PLTM}AND {MACHINE SETUP --> LOAD CFG =
PRESSURE} and {MACHINE SETUP --> MODEL = 1532R, 1932R, 2632R, or 3247R}
LIFT CYLINDER HEAD PRESSURE 2 – OUT OF
RANGE HIGH (8525)
For the 3246R, this fault is triggered when the upper lift cylinder head pressure reading is high. This occurs when
ground module V3-15 exceeds 4.75V for 500mS. Check the wire harness that connects to the lift cylinder for short
circuits (crushed). Replace the lift cylinder head pressure transducer if the wire harness is intact. Refer to LSS Theory
of Operation.
LIFT CYLINDER HEAD PRESSURE 2 – OUT OF
RANGE LOW (8526)
For the 3246R, this fault is triggered when the upper lift cylinder head pressure reading is low. This occurs when
ground module V3-15 falls below 0.25V for 500mS. Check the wire harness that connects to the lift cylinder for open
circuits (cut or crushed). Ensure the harness is connected to the pressure transducer and none of the contacts are out
of position. Replace the lift cylinder head pressure transducer if the wire harness is intact. Refer to LSS Theory of
Operation.
LIFT CYLINDER HEAD PRESSURE – DISAGREE-
MENT (8527)
For the 3246R, this fault is triggered when the difference between the lower and upper lift cylinder head pressures is
greater than 75PSI for 500mS during lift up (V4-7 & V3-15). The fault indicates an issue with the wire harness, pres-
sure transducer(s), or the ground module. Confirm currents and voltages at the ground module to determine the ori-
gin of the issue. Refer to LSS Theory of Operation.
LIFT CYLINDER ROD PRESSURE 1 – OUT OF
RANGE HIGH (8528)
This fault is triggered when the lift cylinder rod pressure reading is excessively high. This occurs when ground mod-
ule V3-5 exceeds 4.75V for 500mS. Check the wire harness that connects to the lift cylinder for short circuits
(crushed). Replace the lift cylinder rod pressure transducer if the wire harness is intact. Refer to LSS Theory of Opera-
tion.
LIFT CYLINDER ROD PRESSURE 1 – OUT OF
RANGE LOW (8529)
This fault is triggered when the lift cylinder rod pressure reading is excessively low. This occurs when ground module
V3-5 falls below 0.25V for 500mS. Check the wire harness that connects to the lift cylinder for open circuits (cut or
crushed). Ensure the harness is connected to the pressure transducer and none of the contacts are out of position.
Replace the lift cylinder rod pressure transducer if the wire harness is intact. Refer to LSS Theory of Operation.
LIFT CYLINDER ROD PRESSURE – DISAGREE-
MENT (8532)
This fault is triggered when the lift cylinder rod pressure fails to fall below 50PSI after 3000mS (V3-5). This fault is
not detected when the vehicle is driving, lifting, or steering. This fault indicates an issue with the wire harness, pres-
sure transducer, or the ground module. Confirm voltage at the ground module to determine the origin of the issue.
Refer to LSS Theory of Operation.
Table 6-7. LSS Troubleshooting (Continued)
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