Двигатели Scania четвёртой серии. Руководство — часть 143

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Fault codes

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List of fault codes

Fault codes

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Fault code 1000

Fault

Overrevving

Cause

The engine speed has been above 3000 rpm.

Remarks

The fuel injection (engine) cuts off when the
engine speed exceeds 3000 rpm and stays off
until the engine speed is below 3000 rpm.
Subsequently, the engine will function
normally.

The fault code is only generated if the gearbox
is handled incorrectly, for example incorrect
downshifting.

Action

Inform the driver of the risks of engine damage
at high engine speeds.

Fault code 1001

Fault

Overrevving

Cause

The engine speed has been above 3276 rpm.

Remarks

The fuel injection (engine) cuts off when the
engine speed exceeds 3000 rpm and stays off
until the engine speed is below 3000 rpm.
Subsequently, the engine will function
normally.

The fault code is only generated if the gearbox
is handled incorrectly, for example incorrect
downshifting.

Action

Inform the driver of the risks of engine damage
at high engine speeds.

Fault codes

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Fault code 1100

Fault

When comparing the engine position engine
speed sensor 1 and 2 supply different data.

Cause

The engine speed signals from engine speed
sensor 1 and 2 have supplied conflicting data as
to where in the working cycle the engine is.

Remarks

If there is only a fault code for one of the
engine speed sensors, this may be due to the
two cables for the engine speed sensor being
mixed up.

If there is a fault code for both engine speed
sensors the engine may have turned several
revolutions backwards, e.g. if the engine stalled
on a slope.

If the fault code is generated as soon as you try
to start the engine, this may be due to the
engine speed sensors being mixed up i.e.
engine speed sensor 1 is in the engine speed
sensor 2 position and vice versa.

If one of the engine speed sensors is faulty the
maximum torque is reduced by approximately
30% (as long as the fault is active) and the high
idling speed is reduced.

If both engine speed sensors are faulty the
engine will shut down.

Action

Check the engine speed sensors, connectors
and wiring.

Fault codes