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Farmer 400
Fav 700
Fav 900
Power lift / EPC electrohydraulic power lift control
Faults in electrical/electronic systems
B
Faults
Fav 900 chassis number 23/3001 and up
17.04.2001
8610
000002
B
a
5/5
Capitel
Docu-No.
Index
Date
Version
Page
Faults in electrical/electronic systems
Text-module
Note on diagnostics for external sensor (see also Chapter 8618)
The EPC - C switches to electrohydraulic remote control when a proper external sensor signal is
detected. If the sensor is missing, the electrohydraulic remote control is switched off. Absence of an
external sensor is a normal operating scenario. Because there is no "Electrohydraulic remote control"
switch position, the EPC - C does not know when it may diagnose or indicate the absence of the
external sensor. For this reason comprehensive external sensor diagnostics is not possible.
Every time the external sensor is connected or disconnected, or in the case of a fault which has the
same effect, the EPC - C locks.
Text-module
Text-module
Note on diagnostics for draft-sensing pins B031 / B032
In the event of a draft-sensing pin B031 / B032 failing, the current signal value is frozen after the
response time to prevent unwanted upward/downward movements, e.g. because of a loose contact.
The relevant movement is therefore only possible to a limited extent or not at all.
Text-module
Note:
See also
Chapter 0000 Index B - Fault code table for Vario tractors
Chapter 9000 Index E - A005 - EPC box
Intermediate faults at EPC e-box A005
Fault code Brief description
Pin no.
on
A005
Possible cause of fault
8.3.22
Position sensor B030
7
- +supply short-circuit
- earth short-circuit
- +supply cable break
- earth cable break
- signal line cable break
8.3.23
EPC depth control
8
- +supply short-circuit
- earth short-circuit
- earth cable break
- signal line cable break
8.3.26
External sensor (external controller)
48
- +supply short-circuit
- earth cable break
Minor faults at EPC e-box A005
Fault code Brief description
Pin no.
on
A005
Possible cause of fault
8.3.31
Right draft-sensing pin B031
25
- +supply short-circuit
- earth short-circuit
- +supply cable break
- earth cable break
- signal line cable break
8.3.32
Left draft-sensing pin B032
43
- +supply short-circuit
- earth short-circuit
- +supply cable break
- earth cable break
- signal line cable break
8.3.33
UB 30 battery voltage
10, 47
UB 30 less than 11.2 VDC