Starting and driving
OPM 100 en-GB 32
© Scania CV AB 2023, Sweden
Emission control
The system provides a warning if there are faults
in the SCR system or if the level of reductant in
the reductant tank is too low. In the case of some
faults, for example if doser cooling is not work-
ing, the torque is reduced.
EMS malfunction warning
The machine interface shows indications for
faults in the engine management system.
A yellow warning lamp indicates that the opera-
tor should contact a workshop as soon as possi-
ble. It is activated in the event of emission-
related faults and other faults which may need to
be rectified.
Below are some examples of typical faults which
illuminate the yellow warning lamp:
• Signal for sensor or actuator lost.
• Engine or exhaust gas aftertreatment system
temperature close to hardware limitations.
• System battery voltage outside the normal
range.
• Diagnostic trouble code for e.g.:
– NOx sensor
– Increase the pressure
–EGR actuator
– Adaptation outside limit values
The red warning lamp indicates an emergency
request for an immediate controlled shutdown
due to a serious risk of personal injury or engine
damage.
The operator should contact a workshop before
starting the engine again.
Below are some examples of typical faults which
cause the red warning lamp to light up:
• Long-term loss of oil pressure.
• Internal EMS software failure.
• Battery voltage too high.
• Severe engine overspeed.
• Serious fuel system fault.
To Next Page
Loading...
