JLG 1850SJ, Service And Maintenance Manual, Page: 128 / 712

SECTION 3 - CHASSIS & TURNTABLE
3-78 3121619
793 693 411 11 DFC is stored in EEPROM and status kept until
check is allowed
to be carried out again
DFC can be reset by service routine 216 deviation between desired O2 concentration in
intake air manifold
and the real O2-concentration within intake air
manifold > limit Threshold for error detection is an internal ECU
threshold.
EGR-Valve mechanically blocked open or closed
EGR-pipe blocked with metall plate instead
sealing downstream EGR-Valve
EGR-Valve actuator defect
EGR-cooler defect (check for coolant water)
Reed Valve defect
Intake throttle blocked in closed position =>
Check intake throttle
Exhaust pressure too high => Check Exhaust
pressure
Check Nox-sensor upstream SCR catalyst
dp venturi sensor defect
795 693 411 3 The sensed raw voltage
Air_uRawPEGRDeltaP is above the maxi-
mum threshold. EGR Delta pressure Sensor defect Check cabling, if charge EGR Delta pressure sen-
sor is not working, check sensor and
if necessary replace it, check connection cable
and if necessary repair or replace it.
796 693 411 4 The sensed raw voltage value
Air_uRawPEGRDeltaP is above the mini-
mum threshold. EGR Delta pressure Sensor defect Check cabling. If charge EGR Delta pressure sen-
sor is not working, check sensor and
if necessary replace it, check connection cable
and if necessary repair or replace it.
825 253 523009 9 The pressure relief valve (PRV) has reached
the number of allowed activations. Rail pressure has exceeded the trigger thresh-
old of the pressure limiting valve. Replace pressure relief valve (PRV) and reset
fault with Serdia.
826 146 523470 2 The pressure relief valve (PRV) has been
opened due to excessive pressure. Rail pressure has exceeded the trigger thresh-
old of the pressure limiting valve. Threshold for error detection is an internal ECU
threshold.
Reset the fault and at reappearance check injec-
tion system.
827 146 523470 2 The pressure relief valve (PRV) has been
opened due to excessive pressure. Rail pressure has exceeded the trigger thresh-
old of the pressure limiting valve. Threshold for error detection is an internal ECU
threshold.
Reset the fault and at reappearance check injec-
tion system.
828 146 523470 12 Rail pressure relief valve: is open.
Shutoff conditions. Shut Off after PRV Open Threshold for error detection is an internal ECU
threshold.
Check PRV opening counter and if necessary
replace PRV,
check rail-pressure sensor for plausibility and if
necessary replace it,
check FCU and if necessary replace it.
829 146 523470 12 Rail pressure relief valve is open.
Warning conditions. Warning PRV open Threshold for error detection is an internal ECU
threshold.
Check PRV opening counter and if necessary
replace PRV,
check rail-pressure sensor for plausibility and if
necessary replace it,
check FCU and if necessary replace it.
Table 3-10. Engine Fault Codes
Deutz
Code
Blink
Code
SPN FMI Description Possible Cause Action