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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
32/72
Capitel
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Date
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Trouble shooting program EDC
Relay UB30 EDC (K020) (Test 16)
Failure Code (Fendt):
1.2.25
Text-module
Failure location (MAN):
25
Text-module
Failure display :
Message on Dashpanel
Text-module
Failure path:
Main relay
Contact is sticking (does not open)
Text-module
Consequences:
Battery may run empty
Text-module
Function:
Minus is supplied to solenoid by EDC Control module, utput Pin B27. Main Relay Switching off occurs
with certain delay after switching "OFF" the ignition ( Delay Time).
Delay time allows internal functions and tests as well as the memorizing of eventual failure Codes.
Text-module
Possible Origin:
Short Circuit with earth, Main Relay failure
Text-module
Test Conditions:
Adaptor box with adapting connectors connected
Text-module
Use wiring diagrams wich are corresponding to the tractor
Text-module
Test
Measurement
Trouble shooting
Main Realy (XXXX)
Check Voltage with adaptor box with ad-
aptor Connectors
- Record Failure and ambient Para-
meters with FENDIAS
between Pin B3/4 and Pin B1/2 B12 on
Control module A021, Connector X048
- Delete Failure Code Memory with
FENDIAS
Requested Values: U Bat by Ignition
"ON"
- Check again with FENDIAS
0 V by Ignition "OFF"
- Check Wiring
- Check Connectors
Failure Conditions: After interruption of
supply, Check opening of Relay Max.
Time: 5seconds.
- if Wiring is OK , Replace main Relay