INSTALLATION
MANUAL
© Scania CV AB 2018, Sweden
Warnings and torque reduction for Stage V
01:07 Issue 17 en-GB 53
Reaction to faults in the exhaust gas aftertreatment
system.
The system reacts to faults in the exhaust gas aftertreatment system via the CAN
message DLN8. For further information on connection, see 03:05 CAN interface.
To indicate faults in the exhaust gas aftertreatment system, Scania recommends that
the warning lamp according to ISO 7000 - 2596 is used in accordance with the strat-
egy below.
Once the fault has been remedied and the engine control unit has received an indica-
tion that the SCR system is operating i.e. when the fault code has been acknowledged
in SDP3, torque returns to the normal level.
Status DLN8 Time Torque reduction Time Torque and speed
control
Urea Quality After
10 hours
Torque is reduced
by 1% per minute
to 75% of the high-
est torque.
After
20 hours
Torque is reduced
by 1% per minute
to 50% of the high-
est torque. The en-
gine speed is
reduced to 60% of
the nominal engine
speed.
Dosing Error After
10 hours
After
20 hours
Monitor Fail-
ure
After
36 hours
After
100 hours
Lamp: Con-
stant light
Lamp: Flashes slowly (½ Hz) Lamp: Flashes rapidly (2 Hz)
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