JLG 400S Service And Maintenance Manual page 221

Deutz Blink
SPN FMI
Code Code
171 3 417 312
171 4 418 312
172 0 1425 226
172 1 1183 226
190 0 389 214
190 2 421 213
190 8 419 212
3121671
Table 3-16. Deutz Engine Fault Codes
Description
Sensor error SCR-System environment
temperature; DPF-System air inlet
temperature; signal range check high
Sensor error SCR-System environment
temperature; DPF-System air inlet
temperature; signal range check low
sensed intake air temperature at air filter >
physical high limit
sensed air temperature within air intake
path of engine below physical low limit
Engine speed: the engine speed calculated
by ECU is above the target range; the ECU
activates a system reaction
ECU measures a deviation between cam-
shaft and crankshaft angle to target.
Camshaft speed sensor: the ECU receives no
signal and uses the signal from crankshaft
speed sensor as alternative to calculate the
engine speed
SECTION 3 - CHASSIS & TURNTABLE
Possible Cause
open loop to sensor
short circuit to Ground
sensed intake air temperature at air filter >
physical high limit
sensed air temperature within air intake path
of engine below physical low limit
Overspeed monitoring during 1 level of FOC
(Failure overrun condition) if engine speed
was over Limit.
Offset error between crankshaft and camshaft. Threshold for error detection is an internal ECU
When disturbed camshaft signal detected.
Error in sensor or wiring.
Action
Check cabling, if environment temperature
sensor is not working, check sensor
and if necessary replace it, check connection
cable and if necessary repair or replace it.
Check cabling, if environment temperature
sensor is not working, check sensor
and if necessary replace it, check connection
cable and if necessary repair or replace it
Check outside conditions:
Temperature > Threshold within the intake
air system of the engine?
E.G: engine sucks in air from hot asphalt out of
paver bucket
Sensor positioned within black air filter
housing
above engine lid at hot environmental
conditions and idling or similar?
=> if yes check with application team to
adapt limits
if not check sensor and wiring harness
exchange sensor
Cold start and ambient temperature < thresh-
old
Check wiring harness to AFST-sensor
Exchange AFST-sensor
check powertrain settings regarding
overspeed
threshold, occurs by offset between
crankshaft and camshaft.
Check increment wheel position, clean and
adjust if necessary, check sensor position.
Check Camshaft and Crankshaft senor or
wiring.
Threshold for error detection is an internal ECU
threshold, occurs by disturbed camshaft
signal.
Check increment wheel position, clean and
adjust if necessary, check sensor position.
Check Camshaft Sensor or wiring.
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