JLG 1850SJ Service And Maintenance Manual page 160

SECTION 3 - CHASSIS & TURNTABLE
Deutz Blink
SPN FMI
Code Code
1897 278 3520 4
1898 277 3519 3
1899 277 3519 4
3-110
Table 3-10. Engine Fault Codes
Description
The integrated diagnostic of the Urea Quality
Sensor recognized a short circuit to ground.
The integrated diagnostic of the tempera-
ture sensor of the Urea Quality Sensor recog-
nized a short circuit to battery.
The UQS Sensor is an combined sensor of
tank temperature, filling grade and DEF
quality and it is also an CAN sensor --> no
PIN
The integrated diagnostic of the tempera-
ture sensor of the Urea Quality Sensor recog-
nized a short circuit to ground
Possible Cause
wiring harness to the suction unit in the DEF
tank is corrupted
CAN Communication corrupted
Wrong diagnostic of the short circuits logic
inside the temperature sensor of the UQS
CAN Communication corrupted
DEF quality sensor in the suction unit of the DEF
tank is defect
CAN Communication corrupted
Action
Threshold for error detection is an internal ECU
threshold.
Check the wiring to the suction unit in the DEF
tank.
Check the CAN bus communication. In case the
communication is corrupt, exchange
the suction unit in the DEF tank.
Check the wiring to the suction unit in the DEF
tank.
Check the CAN bus communication of the suc-
tion unit. In case the communication is
corrupt, exchange the suction unit.
Check the wiring to the suction unit of the DEF
tank.
Check the CAN bus communication from the
suction unit. In case the signal is corrupt,
exchange the suction unit in the DEF tank.
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