JLG 1850SJ Service And Maintenance Manual Download

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SECTION 3 - CHASSIS & TURNTABLE

3121619

3-69

376

281

630

Internal hardware monitoring: the ECU finds
an error during the access to its EEPROM
memory or works with an alternative value

Section could not be erased

Threshold for error detection is an internal ECU
threshold.
There is no healing possible for the error. In the
every new initialization phase, the
debounce level is set to zero.
If not programmed, EEPROM is defect --> ECU is
defect, reprogramm ECU and if
necessary replace it.

377

281

630

Internal hardware monitoring: the ECU finds
an error during the access to its EEPROM
memory or works with an alternative value

Minimum 3 blocks could not be readed,
EEPROM has Checksum Error

There is no healing possible for the error. In the
every new initialization phase, the
debounce level is set to zero.
If not programmed, EEPROM is defect -->ECU is
defect, reprogramm ECU and if
necessary replace it

378

281

630

Internal hardware monitoring: the ECU finds
an error during the access to it's EEPROM
memory or works with an alternative value

Block could not be written for minimum 3 times Threshold for error detection is an internal ECU

threshold.
If not programmed, EEPROM is defect --> ECU is
defect, reprogramm ECU and if
necessary replace it.

381

693

411

Range check cannot be done or interrupted.

EGR or wiring defect

Check wiring harness and connected EGR.

387

555

523612

Internal hardware monitoring: the CPU of
the ECU is reset and the cause is logged inter-
nally; no item will be created in error mem-
ory

Injector shut off demand for the ICO coordinator
System responses:
not

Threshold for error detection is an internal ECU
threshold.
Caution ! Sequence error, check error memory
for other errors.

389

214

190

Engine speed: the engine speed calculated
by ECU is above the target range; the ECU
activates a system reaction

Overspeed monitoring during 1 level of FOC
(Failure overrun condition) if engine speed
was over Limit.

check powertrain settings regarding overspeed

390

214

190

Engine speed: the engine speed calculated
by ECU is above the target range; the ECU
activates a system reaction

Overspeed monitoring during 2 level of FOC
(Failure overrun condition) if engine speed
was over limit.

check powertrain settings regarding overspeed

391

214

190

Engine speed: the engine speed calculated
by ECU is above the target range; the ECU
activates a system reaction

Overspeed monitoring during ORC (Override
conditions) if engine speed was over
2900rpm

check powertrain settings regarding overspeed

417

312

171

Sensor error SCR-System environment tem-
perature; DPF-System air inlet temperature;
signal range check high

open loop to sensor

Check cabling, if environment temperature sen-
sor is not working, check sensor
and if necessary replace it, check connection
cable and if necessary repair or replace it.

418

312

171

Sensor error SCR-System environment tem-
perature; DPF-System air inlet temperature;
signal range check low

short circuit to Ground

Check cabling, if environment temperature sen-
sor is not working, check sensor
and if necessary replace it, check connection
cable and if necessary repair or replace it

419

212

190

Camshaft speed sensor: the ECU receives no
signal and uses the signal from crankshaft
speed sensor as alternative to calculate the
engine speed

When disturbed camshaft signal detected.
Error in sensor 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 postition.
Check Camshaft Sensor or wiring.

JLG 1850SJ, Service And Maintenance Manual

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