JLG 400S Service And Maintenance Manual page 234

SECTION 3 - CHASSIS & TURNTABLE
Deutz Blink
SPN FMI
Code Code
3520 4 1897 278
3520 13 1907 278
3532 3 1911 127
3532 4 1912 127
3711 12 1455 711
3-176
Table 3-16. Deutz Engine Fault Codes
Description
The integrated diagnostic of the Urea
Quality
Sensor recognized a short circuit to ground.
Urea quality at UQS out of range the
specified thresholds; invalid quality of the
urea quality
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.
Temperature Phy_tPfWgh, the weighted
DPF temperature < Threshold 1
Temperature Phy_tPfWgh, the weighted
DPF temperature > Threshold 2 towards
the end of the stand-still main phase.
Possible Cause
wiring harness to the suction unit in the DEF
tank is corrupted
CAN Communication corrupted
Suspected components
DEF quality sensor
DEF
Suspected Components: UQS defect
Suspected Components: UQS defect
temperature Phy_tPfWgh, the weighted DPF
temperature, is below or above
the target temperature towards the end of the
stand-still main phase.
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 DEF quality and/or DEF quality sensor
Check DEF quality and/or sensor.
Check DEF quality and/or Sensor.
Check temperature upstream DOC
Exh_tSensOxiCatUs within Stand-still: > 450
°C? If not:
=> Check air path of engine: EGR-Valve,
Intake-Throttle, Turbocharger and Piping each
for leakage and correct function
Check temperature difference across DOC by
Exh_tSensOxiCatDs -
Exh_tSensOxiCatUs within Stand-still: <
100°C? If not:
Check exhaust pipe downstream turbo
charger for oil?
check injectors: is an injector got stuck?
Too many hydrocarbons in exhaust? White
smoke (at hot EAT system, not at cold start)?
Check air path of engine: EGR-Valve, Intake-
Throttle, Turbocharger and Piping each
for leakage and correct function
Check exhaust gas temperature sensors within
EAT-system: T upstream DOCC, T downstream
DOC & T upstream SCR catalyst all three of
them can influence Phy_tPfWgh
3121671