JLG 400S Service And Maintenance Manual page 260

SECTION 3 - CHASSIS & TURNTABLE
Deutz Blink
SPN FMI
Code Code
524067 0 1581 894
524067 0 1585 894
524067 1 1582 894
3-202
Table 3-16. Deutz Engine Fault Codes
Description
Filtered urea supply module heater
temperature value is above an applicable
maximum heater temperature threshold of
the supply module
The temperature is read out via the PWM
signal of the urea pump. That is only
possible in status init of the SCR-system
short after ignition was switched on. When
that state is
left the sensed temperature value is frozen.
Filtered urea supply module temperature
value (SCR_tSMT) is above an applicable
maximum temperature threshold of the
supply module
The temperature is read out via the PWM
signal of the urea pump. That is only
possible in status init of the SCR-system
short after ignition was switched on. When
that state is
left the sensed temperature value is frozen.
Filtered urea supply module heater
temperature value is below an applicable
minimum heater temperature threshold of
the supply module
The temperature is read out via the PWM
signal of the urea pump. That is only
possible in status init of the SCR-system
short after ignition was switched on. When
that state is
left the sensed temperature value is frozen.
Possible Cause
sensed temperature of supply module heater
>physical high range limit
sensed temperature of urea within supply
module > physical high range limit
sensed temperature of supply module heater
<
threshold
Action
Compare SCR_tSMT with SCR_tSMHtrT. Both
show the same value?
Check urea tank temperature
(SCR_tAdapUTnkT). Very hot (> 70°C), urea
tank heater
permanet on?
Does the pump never stop working? Check
wir- ing to supply module
Compare SCR_tSMT with SCR_tSMHtrT. Both
show different values or urea tank
temperature (SCR_tAdapUTnkT) is cold:
exchange urea pump unit
Supply module heater temperature sensor
defect
Supply module heater defect
Supply module defect
Compare SCR_tSMT with SCR_tSMHtrT. Both
show the same value?
Check urea tank temperature
(SCR_tAdapUTnkT). Very hot (> 70°C), ure
tank heater
permanent on?
Does the pump never stop working? Check
wir- ing to supply module
Compare SCR_tSMT with SCR_tSMHtrT. Both
show different values or urea tank
temperature (SCR_tAdapUTnkT) is cold:
exchange urea pump unit
Supply module temperature sensor defect
Supply module heater defect
Supply module defect
Check ambient temperature EnvT_t < Thresh-
old?
Compare SCR_tSMT with SCR_tSMHtrT Check
wiring with regard to supply module heater
exchange urea pump unit
Supply module heater temperature sensor
defect
Supply module defect
3121671