JLG 1850SJ, Service And Maintenance Manual, Page: 120 / 712

SECTION 3 - CHASSIS & TURNTABLE
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420 212 190 12 Camshaft speed sensor: the ECU receives no
signal and uses the signal from camshaft
speed sensor as alternative to calculate the
engine speed
Threshold: Error in sensor or wiring. Threshold for error detection is an internal ECU
threshold, occurs by disturbed or no
camshaft signal.
Check increment wheel position, clean and
adjust if necessary, check sensor postition.
Check Camshaft Sensor or wiring.
421 213 190 2 ECU measures a deviation between cam-
shaft and crankshaft angle to target. Offset error between crankshaft and camshaft. Threshold for error detection is an internal ECU
threshold, occurs by offset between
crankshaft and camshaft.
Check increment wheel position, clean and
adjust if necessary, check sensor postition.
Check Camshaft and Crankshaft senor or wiring.
422 212 190 8 Sensor crankshaft speed; disturbed signal Error in sensor or wiring.
Crankshaft sensor defect. Threshold for error detection is an internal ECU
threshold, occurs by disturbed
crankshaft signal.
Check increment wheel position, clean and
adjust if necessary, check sensor postition.
Check Crankshaft Sensor or wiring.
423 212 190 12 Crankshaft speed sensor: the ECU receives no
signal and uses the signal from camshaft
speed sensor as alternative to calculate the
engine speed. Error in sensor or wiring. Threshold for error detection is an internal ECU
threshold, occurs by disturbed or no
Crankshaft signal.
Check increment wheel position, clean and
adjust if necessary, check Crankshaft
sensor postition or wiring.
464 228 97 3 Fuel filter water level sensor: the voltage of
sensor measured by ECU is out of the target
range Sensor not connected or sensor defect. Check of wiring and water in fuel sensor.
Check cabling, if charge Water in Fuel sensor is
not working, check sensor and if
necessary replace it,
check connection cable and if necessary repair
or replace it.
465 228 97 4 Fuel filter water level sensor: the voltage of
sensor measured by ECU is out of the target
range. cable break or short circuit, sensor defective,
connection cable damaged.
Short cut to ground. Check sensor and if necessary replace it, check
connection cable
and if necessary repair or replace it.
472 216 94 3 Low fuel pressure sensor: the voltage of sen-
sor measured by ECU is out of the target
range cable break or short circuit, sensor defective,
connection cable damaged
Short cut to battery or open loop Check cabling, if sensor not working, check sen-
sor and if necessary replace it, check
connection cable and if necessary repair or
replace it
473 216 94 4 Low fuel pressure sensor: the voltage of sen-
sor measured by ECU is out of the target
range cable break or short circuit, sensor defective,
connection cable damaged
short cut to ground Check cabling, if sensor not working, check sen-
sor and if necessary replace it, check
connection cable and if necessary repair or
replace it
474 216 94 1 Low fuel pressure: the low fuel pressure cal-
culated by ECU is underneath the target
range; the ECU activates a system reaction Fuel pressure below warning threshold Check low fuel pressure system (fuel feed pump,
relay , fuse, wiring, sensor) and if
necessary repair or replace it.
543 263 676 11 Cold start aid relay error. Relay defect or wire harness problem Threshold for error detection is an internal ECU
threshold.
check wire harness, replace relay
544 263 676 11 Cold start aid relay open load Relay or wire harness Threshold for error detection is an internal
threshold.
check wire harness, replace relay
Table 3-10. Engine Fault Codes
Deutz
Code
Blink
Code
SPN FMI Description Possible Cause Action