Двигатели Scania четвёртой серии. Руководство - часть 154

54

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03:04-06

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

ã

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

56

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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

ã

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