![background image](http://html1.mh-extra.com/html/fendt/favorit-900/favorit-900_workshop-manual_4001870538.webp)
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
33/72
Capitel
Docu-No.
Index
Date
Version
Page
Trouble shooting program EDC
Check Relay Time Delay: Engine Stopf via Gate-Array (Control Module) within
EDC Control Module A021 (Test 17)
Failure Code (Fendt):
1.2.A6
Text-module
Failure location (MAN):
A6
Text-module
Failure display :
Message on Dashpanel
Text-module
Failure path:
EDC Control Module , Driving Speed Signal, Injection Pump
Text-module
Consequences:
Full Power Fuel Flow reduced by 25-40%
Reduce max Speed to 1900 Rpm
Engine Stop is not possible via Monitoring Module
Text-module
Function:
Mikroprocessor runs an Autotest. For Rely Delay Time, failures are simulated on purpose . If the
expected Speed Loss does not occur, a Failure Code will be emitted.
Text-module
Possible origin:
EDC Control Module Failure, Bewel pinion Sensor (XXXX) Signal not plausible, 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:
Bewel pinion Speed Sensor (XXXX) Signal need to be checked in Case of Relay delay Time Failures.
Reason: If speed Display shows 0 km/h while tractor is moving, and Ignition will be switched "OFF",
then Delay Time occurs. Several Solution Paths ???? in Delay time will then be considered as Failed,
since speed does not decrease fast enough (vehicle is still moving).
Text-module
Use wiring diagrams wich are corresponding to the tractor
Text-module
Test
Measurement
Trouble shooting
EDC Control Unit
Failure Conditions: If Speed does not
drop within 10 seconds below 300
Rpm, Failure Code will be emitted.
- Record Failure and ambient Para-
meters with Diagnosic program.
- Delete Failure Code Memory with
EDC Diagnostic Program
- Check again with diagnostic pro-
gram
- If Failure persists, Replace EDC
Control Module
Injection Pump
- Record Failure and ambient Para-
meters with FENDIAS
- Delete Failure Code Memory with
FENDIAS
- Check again with FENDIAS
- If Failure persists, Replace Injection
Pump