JLG 400S Service And Maintenance Manual page 258

SECTION 3 - CHASSIS & TURNTABLE
Deutz Blink
SPN FMI
Code Code
524063 12 1646 869
524065 0 1565 892
3-200
Table 3-16. Deutz Engine Fault Codes
Description
SCR supply module temperature is not
reaching a threshold before a calibratable
time is exceeded.
Corresponding to the environmental Tem-
perature a specific defrosting time is given.
After starting the defrosting a clock counter
is starting. Does the counter reach the
given defrosting time limit, an error will be
detected. Is the temperature reached in
time the clock counter will be reset
Example: by using the calibrated tempera-
ture/time curve --> environmental
temper- ature 0°C --> defrosting time limit
6000s --
> if the clock counter reaches 6000s the
error will
be detected
The relativ pressure value of the exhaust
gas from the urea cat upstream
sensor is greater than an applicable maxi-
mum pressure threshold
Possible Cause
Suspected components:
Enviroment temperature sensor defect
SCR supply module temperature sensor defect
SCR supply module electrical heater defect
sensed presure upstream SCR catalyst >
physi- cal high range limit f(exhaust volume
flow)
UCatUsP_pRelFlt_mp > UCatUsP_pMax_mp
Action
Check
Environment temperature sensor
SCR supply module temperature sensor
SCR supply module electrical heater
Check for crystallisation in exhaust line
upstream SCR and dwnstream of urea injector
Check correct connection from exhaust line to
pressure sensor upstream SCR catalyst:
syphons?, water in tube?, water in sensor?
Check that exhaust pipe outlet is free (down-
stream SCR catalyst)
Check wiring of pressure sensor upstream SCR
catalyst
Check pressure sensor upstream SCR catalyst:
sensor has no connection to vehicle body? =>
Ensure that sensor is free
Does sensor oscillate heavely at engine low
idle
/ high idle? => try to supress the oscillating
Exchange pressure sensor upstream SCR cata-
lyst
Check calculated exhaust volume flow of
engine within EDC: SCR_dvolSCRUs pausible?
If not:
Check T sensor upstream SCR catalyst, check
complete engine air path: EGR-Valve,
Intake throttle, turbocharger, piping for leak-
age and function
Check SCR catalyst: Broken? Exchange SCR-
Cat-
alyst
3121671