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42
Operation Section
Selective Catalytic Reduction Warning System
If the inducement is a result of a category 2 fault, then
a level 1 inducement will occur for a duration of 10
hours. There is no repeat occurrence for category 2,
level 1 inducement faults.
If the inducement is a result of a category 3 fault, then
a level 1 inducement will occur for a duration of 36
hours. There is no repeat occurrence for category 3,
level 1 inducement faults.
Reduced Time The check engine and emissions
malfunction indicator lamp will illuminate for a level 1
inducement-related fault. There are three inducement
categories. If the inducement is a result of a category
1 fault, then a level 1 inducement will occur for a
duration of 2.5 hours for first occurrence. For repeat
occurrence, a category 1 level 1 inducement fault will
occur for a duration of 5 minutes.
If the inducement is a result of a category 2 fault, then
a level 1 inducement will occur for a duration of 5
hours. There is no repeat occurrence for category 2,
level 1 inducement faults.
If the inducement is a result of a category 3 fault, then
a level 1 inducement will occur for a duration of 18
hours. There is no repeat occurrence for category 3,
level 1 inducement faults.
Illustration 49
Reduced Performance If a fault condition exists for
the entire duration of inducement level 1, the strategy
advances to inducement level 2. The check engine
and emissions malfunction indicator lamp will
illuminate and flash slowly for a level 2 inducement-
related fault. The engine will have a 50% derate. If
the inducement is a result of a category 1 fault, then a
level 2 inducement will occur for a duration of 70
minutes for first occurrence. For repeat occurrence, a
category 1 level 2 inducement fault will occur for a
duration of 5 minutes.
If the inducement is a result of a category 2 fault, then
a level 2 inducement will occur for a duration of 10
hours. For repeat occurrence, a category 2 level 2
inducement fault will occur for a duration of 2 hours.
If the inducement is a result of a category 3 fault, then
a level 2 inducement will occur for a duration of 64
hours. For repeat occurrence, a category 3 level 2
inducement fault will occur for a duration of 5 hours.
Reduced Time
The check engine and emissions malfunction
indicator lamp will illuminate for an inducement-
related fault. There are three inducement categories.
If the inducement is a result of a category 1 fault, then
a level 1 inducement will occur for a duration of 2.5
hours for first occurrence. For repeat occurrence, a
category 1 level 1 inducement fault will occur for a
duration of 5 minutes.
If the inducement is a result of a category 2 fault, then
a level 1 inducement will occur for a duration of 5
hours. There is no repeat occurrence for category 2,
level 1 inducement faults.
If the inducement is a result of a category 3 fault, then
a level 1 inducement will occur for a duration of 18
hours. There is no repeat occurrence for category 3,
level 1 inducement faults.
Illustration 50
If a fault condition exists for the entire duration of
inducement level 2, the strategy advances to
inducement level 3. Inducement level 3 has the same
actions for all categories. The check engine lamp and
the emissions malfunction indicator lamp will flash at
a fast rate. A red stop lamp will illuminate solid. The
engine will have a 100% derate and be limited to
1000 rpm or low idle, whichever is greater. If the final
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inducement action in ET is set to "Idle Down", then
engine will continue to idle at derated condition. If set
to "Shutdown" , engine will shut down after 5
minutes. A key cycle will allow safe harbor mode to
initiate. Safe harbor is only allowed once. After safe
harbor, the engine will be in level 3 final inducement.
If set to "Shutdown", the engine may be restarted, but
will only run for 5 minutes at derated condition before
shutting down again. This action will continue until
the issue is resolved.
Note: Contact your Perkins dealer for repairs if a fault
occurs.
M0076814-03
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