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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
56/72
Capitel
Docu-No.
Index
Date
Version
Page
Trouble shooting program EDC
"Timeout" CAN Message from Engine Control Module A021 to Pump Control
Module A020
(Test 39)
Failure Code (Fendt):
1.2.B1
Text-module
Failure location (MAN):
B1
Text-module
Failure display:
Message on Dashpanel
Text-module
Failure path:
CAN-Signal from EDC Control Module to Pump Control Module (Timeout)
Text-module
Consequence:
Maximal Speed reduced to 2000 Rpm
Torque reduced by 25-40%
Text-module
Possible Origin:
Wiring discontinuity, Short Circuit, Control Module failure, Injection pump failure
Text-module
Remark 1:
Before Replacing any Pump or Control Module, failure Codes must l be analyzed and then deleted.
In case of several Failure Codes, check first the Test procedures wich are not requesting a replacement
of the Control Module or of the pump.
Text-module
Remark 2:
In Case of CAN Failure, engine speed will be set at 730 Rpm
Text-module
Test Co-s:
Adaptor box with adapting connectors connected
Ignition "OFF"
Text-module
Use wiring diagrams wich are corresponding to the tractor
Text-module
Test
Measurement
Trouble shooting
EDC Control Module
1.Check Voltage with adaptor box with adap-
tor Connectors between Pin A27 and A24
- Record Failure and ambient Parameters
with FENDIAS
Requested Value: 60 Ohm
- Delete Failure Code Memory with FEN-
DIAS
2. Check continuity CAN-Bus between VP44
and Contol Module Wires WM1707 and
WM1706
- Check again with FENDIAS
Failure Conditions: No Indications available -approx. 0 Ohm Short Circuit from CAN-H
to CAN-L
- Approx. 120 Ohm: Connection to final
Resistor is discontinued
- If Failure persists, Replace Control mo-
dule
Injection pump
- Record Failure and ambient Parameters
with FENDIAS
- Delete Failure Code Memory with FEN-
DIAS
- Check again with FENDIAS
- If Failure persists, Replace Injection
Pump