JLG 1850SJ Service And Maintenance Manual page 162

SECTION 3 - CHASSIS & TURNTABLE
Deutz Blink
SPN FMI
Code Code
1904 2-7-8 3520 2
1907 278 3520 13
1908 277 3519 13
1911 127 3532 3
1912 127 3532 4
1914 669 4365 3
1915 6-6-9 4365 4
1917 2-8-6 3936 14
3-112
Table 3-10. Engine Fault Codes
Description
Measured DEF Quality from UQS is too low.
Quality value received from UQS is < 22 % for
a certain time and a certain number or for
measuring conditions not observed for a cer-
tain time.
Urea quality at UQS out of range the speci-
fied thresholds; invalid quality of the urea
qualiy
Temperature at UQS out of range the speci-
fied thresholds; invalid quality of the tem-
perature
The urea quality value from the sensor is
greater than the maximum physical range
threshold
Comment: tank temperature is measured by
the UQS sensor
The urea quality value from the sensor is
lower than the minimum physical range
threshold.
Internal error of DEF qualitysensor.
Internal error of DEF qualitysensor.
Standstill escalation by time. In case the
standstill request will not be released within
50 h by the driver this fault code will be set.
Possible Cause
Suspected components:
Urea quality sensor defect
Wrong installation (measuring air)
Urea level sensor defect
Non urea filled in tank
CANBUS problems
Evaluation conditions for new quality check not
fulfilled after one previous mal detection
Suspected components
DEF quality sensor
DEF
Suspected Components
Tank heater
DEF sensor
Suspected Components:
UQS defect
Suspected Components:
UQS defect
Suspected componentes:
DEF qualitysensor
Wiring harness
Suspected componentes:
DEF qualitysensor
Wiring harness
Stand-still request ignored by the operator.
Display / stand-still request lamp broken.
Action
Check that there is liquid urea of known quality
in the tank first
Check urea tank level. Add urea until level is at
least 10 cm above sensor.
Ensure that urea is not frozen / sufficient urea is
liquid
Check Sensor: Are urea tank temperature and
level displayed? Changes the level if you
refill urea?
Check electrical connection
Check CANBus
New quality detection is carried out if urea re-
fill is detected or if an quality evaluation
was triggered and was not finished success-
fully: To provoke a quality measurement: refill
urea, at least 10 % of tank volume
Wait until quality evaluation was carried out,
can take up to 30 minutes => check value.
It should be about 33 %
Exchange quality sensor
Check DEF quality and/or DEF quality sensor
Check temperature system and/or DEF quality
sensor
Check DEF quality and/or sensor.
Check DEF quality and/or Sensor.
Check wiring harness and DEF qualitysensor
Check wiring harness and DEF qualitysensor
Perform Stand-still. If soot load level of DPF has
increased too high already call service
to perform stand-still.
In case the DPF soot load level remove DPF =>
Exchange DPF.
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