JLG 400S Service And Maintenance Manual page 264

SECTION 3 - CHASSIS & TURNTABLE
Deutz Blink
SPN FMI
Code Code
524080 9 1539 257
524081 9 1540 258
524083 9 1542 261
524085 9 1544 912
524100 9 1666 924
3-206
Table 3-16. Deutz Engine Fault Codes
Description
sensed lambda value of Nox-sensor
upstream SCR catalyst is > physical high
limit
ComRxSCR_rCanLamUs_mp > Threshold
sensed lambda value of Nox-sensor
upstream SCR catalyst is < physical low
limit ComRxSCR_rCanLamUs_mp <
Threshold
sensed NOx-value of NOx-sensor down-
stream SCR catalyst < Threshold
sensed Nox-value of Nox-sensor upstream
SCR catalyst < Threshold
Timeout error of CAN-Transmit-Frame
Com- DPFHisDat.
Possible Cause
sensed lambda value of Nox-sensor upstream
SCR catalyst is > physical high limit
ComRxSCR_rCanLamUs_mp > Threshold
sensed lambda value of Nox-sensor upstream
SCR catalyst is < physical low limit
ComRxSCR_rCanLamUs_mp < Threshold
sensed Nox-value of Nox-sensor downstream
SCR catalyst < physical low limit
sensed Nox-value of Nox-sensor upstream SCR
catalyst < physical low limit
Open load on CANBUS wiring.
Action
Check whether NOx-sensor upstream SCR
catalyst is physically mounted within the
exhaust line
Check Lambda values of NOx-sensor upstream
SCR catalystat at idle conditions,
ComRxSCR_rCanLamUs_mp < Threshold?
Compare to ComRxSCR_rCanLamDs_mp.
Must be almost identical
Check CANBus of NOx-sensor upstream SCR
cat-
alyst
Check NOx-sensor upstream SCR catalyst
wiring Check NOx-sensor upstream SCR
catalyst itself Replace NOx-sensor upstream
SCR catalyst
Check air path of engine: EGR-Valve, Intake-
Throttle, Turbocharger and Piping each
for leakage and correct function
Check injection system of engine. Injector
stuck?
Check CANBus of NOx-sensor upstream SCR
cat- alyst
Check NOx-sensor upstream SCR catalyst
wiring
Check NOx-sensor upstream SCR catalyst itself
Replace NOx-sensor upstream SCR catalyst
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
Check CANBus of NOx-sensor upstream SCR
catalyst
Check NOx-sensor upstream SCR catalyst
wiring Check NOx-sensor upstream SCR
catalyst itself Replace NOx-sensor upstream
SCR catalyst
Check wiring, component.
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