JLG 1850SJ, Service And Maintenance Manual, Page: 130 / 712

SECTION 3 - CHASSIS & TURNTABLE
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861 134 523613 1 Rail pressure: the fuel pressure in rail calcu-
lated by ECU is below the target range
which is dependant on the engine speed. Rail pressure falls below the limiting value
based on the engine speed. Threshold for error detection is an internal ECU
threshold.
(A) Check backflow pressure
(B) Check Injector function with SerDia
(C) Change components (metering unit, injec-
tor) if necessary
862 134 523613 0 Rail pressure: the fuel pressure in rail calcu-
lated by ECU is above the target range. Rail pressure exceeds the limiting value. (A) Check backflow pressure
(B) Check pressure relief valve and metering
unit.
(C) Change components if necessary
864 134 523613 2 Rail pressure metering unit, Setpoint of
metering unit in overrun mode not plausi-
ble. Pressure pump delivery quantity in overrun
exceeds the threshold based on the
pressure. Threshold for detection is an internal ECU
threshold.
(A) Check backflow pressure
(B) Check pressure relief valve and metering
unit.
(C) Change components if necessary
876 146 523470 7 Rail pressure is out of the expected average
range. Rail pressure is out of the expected average
range.
PRV can not be opened. (A) Check railpressure relief valve and replace if
necessary.
(B) Check high pressure pumps, pressure relief
valve and metering unit.
(C) Change components if necessary
877 147 157 3 Rail pressure sensor: the voltage of sensor
measured by ECU is out of the target range. Short cut to battery.
Damaged rail pressure sensor. Check cabling, check rail pressure sensor and if
necessary replace it,
check connection cable and if necessary repair
or replace it.
878 147 157 4 Rail pressure sensor: the voltage of sensor
measured by ECU is out of the target range. Check cabling, check rail pressure sensor and if
necessary replace it,
check connection cable and if necessary repair
or replace it. Check cabling, check rail pressure sensor and if
necessary replace it,
check connection cable and if necessary repair
or replace it.
925 148 523720 8 Supply module heater: Duration of switch on
is too long. uty cycle for temperature readout from supply
module heater to the control unit is out
of range; Supply modul defect, fault in the wir-
ing. When the received supply module heater tem-
perature duty cycle SCR_rSMT is out of
the failurerange (SCR_rSMFailMax_C <
SCR_rSMHtrT < SCR_rSMFailMin_C)
Supply module check and replace if necessary.
Check the wiring.
926 148 523720 8 Supply module heater: Dutycycle timing
over error threshold. Duty cycle for temperature readout from supply
module heater to the control unit is not
valid.
Supply modul defect, fault in the wiring. When the received supply module heater duty
cycle SCR_rSMHtrT is in the valid range
(SCR_r-
Supply module check and replace if necessary.
Check the wiring.
927 689 523721 11 Supply module heater: temperature mea-
surement not available. Duty cycle for temperature readout from supply
module heater to the control unit is not
available.
Supply modul defect, fault in the wiring. Threshold for detection is an internal ECU
threshold.
No erasing in the current driving cycle.
Supply module check and replace if necessary.
Check the wiring.
928 928 691 8 Supply module heater: PWM time periode
out of valid range. PWM signal for temperature readout from sup-
ply module to the control unit is out of
range.
Supply modul defect, fault in the wiring. The Time period of the received PWM signal
SCR_tiSMPerPwm is within the specified
range of150ms to 250ms
Supply module check and replace if necessary.
Check the wiring.
Table 3-10. Engine Fault Codes
Deutz
Code
Blink
Code
SPN FMI Description Possible Cause Action