JLG 1850SJ Service And Maintenance Manual Download

Page: 132 / 712

SECTION 3 - CHASSIS & TURNTABLE

3-82

3121619

940

2-2-6

Analog accelerator pedal sensor 1 or double
accelerator pedal sensor: the voltage mea-
sured by ECU is out of the target range or the
calculated pedal position is implausible
compared with the position of the second
pedal

Short circuit to ground.

Check cabling, check accelerator pedal sensor
and if necessary replace it, check
connection cable and if necessary repair or
replace it
If the signal exceeds the applicatable threshold
APP_uRaw1SRCLow_C, the signal
range violation is reset after the
healing

946

282

1079

Internal hardware monitoring: the ECU
detects a deviation of the target range of the
power supply voltage of sensor output 1.

Suspected components EDC17cv52
Pin A19: DEF press / Exh.PressBeforeTurb (P3) /
Air Pump Press
/BrnFuelPressAfterDV2 Pin K19: Fan Speed Sen-
sor
Pin A21: LDF6T / OilPress / LowFuelPress Pin
A17: Rail Pressure Sensor
Suspected components EDC17cv54
Pin A21: CAM speed Pin K44: Delta Press Venturi
/ Poti EGR or Inlet Throttle
Pin A24: LDF6T / OilPress / LowFuelPressPin
K43: Reserve 5V Sensor Supply
Pin A09: second footpedal
Suspected components EDC17cv56
Pin A21: Cam speed Pin K44: DEF press / Air Fil-
terDiffPress
Pin A24: LDF6T / OilPress / LowFuelPress Pin
K43: second footpedal
Pin A09: Delta Press Venturi

Check cabling of external components, check
working voltage and if necessary correct
it,
check connection cable and if necessary repair
or replace it,
if error is not removable, change ECU.

947

282

1080

Internal hardware monitoring: the ECU
detects a deviation of the target range of the
power supply voltage of sensor output 2.

Suspected components EDC17cv52
Pin K16: second footpedal
Pin A20: Exh.PressAfterTurb/DPFDiffPress/
BrnDV1Press/HCIPressDV1DV2
Suspected components EDC17cv54
Pin K45: DPF Diff Press / Exh. Press After Turb /
Fan Speed Sensor
Pin A46: first footpedal
Suspected components EDC17cv56
Pin A22: Fan Speed Sensor
Pin K45: Position EGR or Intake throttle flap
Pin K46: First footpedal

Check cabling of external components, check
working voltage and if necessary correct
it, check connection cable and if necessary
repair or replace it, if error is not removable,
change ECU.

948

282

523601

Internal hardware monitoring: the ECU
detects a deviation of the target range of the
power supply voltage of sensor output 3.

Suspected components EDC17cv52
Pin A18: DeltaPressVenturi / Position intake
throttle flap
Pin K20: First footpedal
Pin K21: Air FilterDiffPress
Suspected components EDC17cv54 and cv56
Pin A07: Rail pressure

Check cabling of external components, check
working voltage and if necessary correct
it,
check connection cable and if necessary repair
or replace it,
if error is not removable, change ECU.

956

512

677

Start relay (high side power stage): the cur-
rent drop measured by ECU is above the tar-
get range.

Short cut HighSide-output to battery.

Threshold for error detection is an internal ECU
threshold.
Check cabling and start relay and if necessary
replace it,
check connection cable and if necessary repair
or replace it.

JLG 1850SJ, Service And Maintenance Manual

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