JLG 1850SJ Service And Maintenance Manual page 145

Deutz Blink
SPN FMI
Code Code
1535 248 524076 9
1536 249 524077 11
1537 255 524078 9
3121619
Table 3-10. Engine Fault Codes
Description
Open line sensor internally at NOx-sensor
downstream SCR
NOx Sensors are CAN Sensors --> no HW Pin
on the ECU
Short circuit sensor internally at NOx-sensor
downstream SCR
NOx Sensors are CAN Sensors --> no HW Pin
on the ECU
Lambda value of NOx-Sensor downstream
SCR is out of range.
When the filtered Lambda concentration
value at the sensor
(ComRxSCR_rFltLamDs_mp) is greater than
the physical range check max. lambda
threshold
SECTION 3 - CHASSIS & TURNTABLE
Possible Cause
Open line sensor internally at NOx-sensor
downstream SCR
Short circuit sensor internally at NOx-sensor
downstream SCR
sensed lambda value of Nox-sensor down-
stream SCR catalyst is > physical high limit
ComRxSCR_rCanLamDs_mp > threshold
Action
Threshold for error detection is an internal ECU
threshold.
Check NOx-Sensor upstream SCR catalyst:
water inside? Shake out sensor after
dismounting. => If water inside, replace sen-
sor.
Check mounting position of sensor and judge it
regarding condense water formation /
agglomeration.
Check wiring harness
Exchange sensor
Threshold for error detection is an internal ECU
threshold.
Check NOx-Sensor upstream SCR catalyst:
water inside? Shake out sensor after
dismounting. => If water inside, replace sen-
sor.
Check mounting position of sensor and judge it
regarding condense water formation /
agglomeration.
Check wiring harness
Exchange sensor
Check whether NOx-sensor downstream SCR
catalyst is physically mounted within the
exhaust line
Check Lambda values of NOx-sensor down-
stream SCR catalystat at idle conditions,
ComRxSCR_rCanLamDs_mp > threshold?
Compare to ComRxSCR_rCanLamUs_mp. Val-
ues must be almost identical
Check CANBus of NOx-sensor downstream SCR
catalyst
Check NOx-sensor downstream SCR catalyst
wiring
Check NOx-sensor downstream SCR catalyst
itself
Replace NOx-sensor downstream SCR catalyst
3-95