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