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Fav 900
Engine / Systems
Trouble shooting program EDC
B
Faults
Fav 900 chassis number 23/3001 and up
16.11.2000
2000
000001
B
b
3/72
Capitel
Docu-No.
Index
Date
Version
Page
Trouble shooting program EDC
Pedal Position Sensor B029 to ESTControl module A002 Direct Diagnostic
Failure Code (Fendt):
4.1.06
Text-module
Failure location (MAN):
not available
Text-module
Failure path:
Accelerator pedal position sensor
- Signal to high
- Signal to low
Text-module
Consequences:
Requested engine speed will be compared to the position of pedal sensor EDC (B038). In case of
correspondance, control via CAN-Bus will be deactivated. Control via hand throttle, memorization keys
and vario terminal will not be possible. Only accelerator pedal operation (Sensor B038 ).
Text-module
Possible origin:
Wiring interruption , Shot circuit, Power supply failure, Pedal position sensor failure, EST Control
Module failure.
Text-module
Test Conditons:
Adaptor box connected
Ignition "On"
Text-module
Use wiring diagrams wich are corresponding to the tractor
Fendt Component identification:
B029 Pedal position sensor
Fendt Connector identification:
X176 Connector, 1:Earth, 2: 5V supply, 3:Signal
Text-module
Test
Measurements
Trouble shooting
Power supply
Check Voltage on Adaptor box between
fuse board A013 Pin A6 (+), Connector
X200 against earth.
- Check wiring
- Check connectors
- If no failure can be identified, check
Fuses
Check wiring WF1492, WF 1744
Requested value: 8 - 8,5 V
Potentiometer
Current with adaptor box at EST Control
Module A002 Pin 7, Connector X031 .
- Check wiring
Check wiringWF 1728
- Check Connectors
Check Signal with FENDIAS
- Adjust mecanical link between pedal
and sensor
Requested value:
- If adjustment becomes unfeasable,
replace position sensor
Idle Position: 16mA - 22mA
Full throttle position: 2mA - 8mA
Tolerances: I < 2mA oder I > 22mA