Двигатели Scania четвёртой серии. Руководство — часть 155

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03:04-06

Fault code 4300

Fault

Internal fault in the control unit.

Cause

The internal hardware check of the control unit
indicated a fault.

Remarks

The EDC control unit switches off the fuel
supply to the unit injectors by shutting the
solenoid valves as long as the fault is active.

As a result, it takes longer to start the engine or
the engine cannot be started at all.

Action

Clear the fault code memory and switch off/on
the power with the starter key.

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

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59

Fault code 4301

Fault

Internal fault in the control unit.

Cause

The internal hardware check of the control unit
indicated a fault.

Remarks

The EDC control unit switches off the fuel
supply to the unit injectors by shutting the
solenoid valves as long as the fault is active.

This often results in short intervals of engine
malfunction or if the fault is active over an
extended period of time, the engine stalling.

Fault code 4303 will also be generated.

The fault code can be generated as a result of
one of the fault codes 3200, 3500, or E000-
E006 being generated.

Action

Clear the fault code and 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

60

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03:04-06

Fault code 4302

Fault

Internal fault in the control unit.

Cause

The internal hardware check of the control unit
indicated a fault.

Remarks

The control unit will not switch off as long as
the fault is active.

Action

Clear the fault code and 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 4303

Fault

Internal fault in the control unit.

Cause

The internal hardware check of the control unit
indicated a fault.

Remarks

The fault often results in short intervals of
engine malfunction. If the fault is active over
an extended period of time, fault code 4301
will also be generated.

The fault code can be generated as a result of
one of the fault codes 3200, 3500, or E000-
E006 being generated.

Action

Clear the fault code and 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

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61

Fault code 4400

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 4401

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