Двигатели Scania четвёртой серии. Руководство — часть 156
62
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03:04-06
Fault code 4404
Fault
Internal fault in the control unit.
Cause
A memory fault has occurred in the control
unit.
Remarks
The vehicle cannot be started or driven as long
as the fault is active.
Action
Clear the fault code memory and try to start the
vehicle. If the fault code is regenerated and the
vehicle does not start, renew the control unit.
If the vehicle starts, drive the vehicle for
approximately 10 minutes.
Check if the fault code has been generated
again. If the fault code has been regenerated,
renew the control unit.
Fault code 4405
Fault
Internal fault in the control unit.
Cause
A memory fault has occurred in the control
unit.
Remarks
The vehicle cannot be started or driven as long
as the fault is active.
Action
Clear the fault code memory and try to start the
vehicle. If the fault code is regenerated and the
vehicle does not start, renew the control unit.
If the vehicle starts, drive the vehicle for
approximately 10 minutes.
Check if the fault code has been generated
again. If the fault code has been regenerated,
renew the control unit.
Fault codes
03:04-06
ã
63
Fault code 4406
Fault
Internal fault in the control unit.
Cause
A memory fault has occurred in the control
unit.
Remarks
The vehicle cannot be started or driven as long
as the fault is active.
Action
Clear the fault code memory and try to start the
vehicle. If the fault code is regenerated and the
vehicle does not start, renew the control unit.
If the vehicle starts, drive the vehicle for
approximately 10 minutes.
Check if the fault code has been generated
again. If the fault code has been regenerated,
renew the control unit.
Fault code 4407
Fault
Internal fault in the control unit.
Cause
A memory fault has occurred in the control
unit.
Remarks
The vehicle cannot be started or driven as long
as the fault is active.
Action
Clear the fault code memory and try to start the
vehicle. If the fault code is regenerated and the
vehicle does not start, renew the control unit.
If the vehicle starts, drive the vehicle for
approximately 10 minutes.
Check if the fault code has been generated
again. If the fault code has been regenerated,
renew the control unit.
Fault codes
64
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03:04-06
Fault code D000
Fault
The voltage has been above 4.79 V (above
25.9 bar absolute pressure), i.e. the fuel supply
pressure was above its upper limit.
Cause
The voltage between the control unit pins 9 and
10 in connector B2 is too high, or there is a
fault with the voltage supply to sensor group 1
(pin 2 in connector A1 or pin 2 in connector
A9).
Remarks
If the voltage is outside the permitted range, the
control unit uses a pre-programmed value
(21,4 bar absolute pressure).
Engine torque is limited by approximately 30%
as long as the fault is active.
If a fault is indicated on the oil pressure sensor
at the same time, it is probably the shared
voltage supply which is faulty.
Action
Check the signal from the fuel supply pressure
sensor.
Check for any visible faults on the sensor and
the wiring.
Clean the connectors.
Then, erase the fault code memory and check
whether the fault code is generated again.
Fault codes
03:04-06
ã
65
Fault code D001
Fault
The voltage has been below 0.147 V (below -
2.1 bar absolute pressure), i.e. the fuel supply
pressure was below its lower limit.
Engine torque is limited by approximately 30%
as long as the fault is active.
Cause
The voltage between the control unit pins 9 and
10 in connector B2 is too low, or there is a fault
with the voltage supply to sensor group 1 (pin 2
in connector A1 or pin 2 in connector A9).
Remarks
If the voltage is outside the permitted range, the
control unit uses a pre-programmed value
(21,4 bar absolute pressure).
If the oil pressure sensor value is incorrect at
the same time, it is probably the shared voltage
supply for the sensors which is faulty.
Action
Check the signal from the fuel supply pressure
sensor.
Check for any visible faults on the sensor and
the wiring.
Clean the connectors.
Then, erase the fault code memory and check
whether the fault code is generated again.
Fault codes
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