Двигатели Scania четвёртой серии. Руководство — часть 154

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Fault code 4100

Fault

The control unit was interrupted before
completion of the shutdown test.

Cause

The voltage to pins 1 and 6 on connector B1
has disappeared too early.

Remarks

During the shutdown test, the control unit
carries out a function test after the power is
switched off using the key.

The engine torque is limited if the shutdown
test is interrupted 10 consecutive times.

The fault code can also result in it taking longer
to start the engine.

The fault is assumed to have been rectified as
soon as the control unit is able to perform a
shutdown test without interruption.

The engine must always be switched off using
the key. If a battery master switch is fitted, it
must not be switched off before the warning
lamp goes out.

Action

Check that the warning lamp is on for a short
period after the power is switched off using the
key.

Check the connectors and wiring to control unit
pins 1 and 6 on connector B1.

The voltage supply may be interrupted if extra
equipment has been connected.

Fault codes

03:04-06

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55

Fault code 4101

Fault

Data transfer to the control unit memory has
been interrupted.

Cause

Data transfer to the control unit memory takes
place both during operation and when
switching off the engine. This fault code is
generated if the transfer is interrupted. This
may have been caused by for example a too low
voltage to the control unit.

Remarks

The fault code can result in it taking longer to
start the engine.

Action

Check the battery and alternator.

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

Check if the fault code has been generated
again. Renew the control unit if the fault code
is regenerated.

Fault code 4102

Fault

Internal fault in the control unit.

Cause

The control unit has discovered that the fault
code memory or another memory in the control
unit is not functioning correctly.

Remarks

The fault code can result in it taking longer to
start the engine.

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. Renew the control unit if the fault code
is regenerated.

Fault codes

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03:04-06

Fault code 4200

Fault

Internal fault in the control unit.

Cause

The control unit has detected that one of the
control unit's memories is not functioning
correctly.

Remarks

The fault will also result in a fault code for
battery voltage and fuel pressure.

If the memory starts to function properly again,
the control unit will first have to carry out a
shutdown test before it can regard the fault as
inactive.

Action

If the fault code has only been generated once:

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

Renew the control unit if the fault code is
regenerated.

Renew the control unit if the fault code is
generated several times.

Fault codes

03:04-06

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57

Fault code 4201

Fault

Internal fault in the control unit.

Cause

The control unit has detected that one of the
control unit's memories is not functioning
correctly.

Remarks

The fault will also result in a fault code for
temperature sensor and charge pressure sensor.

If the memory starts to function properly again,
the control unit will first have to carry out a
shutdown test before it can regard the fault as
inactive.

Action

If the fault code has only been generated once:

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

Renew the control unit if the fault code is
regenerated.

Renew the control unit if the fault code is
generated several times.

Fault codes