
(Table 17, contd)
3251-16
Particulate Trap Differential Pressure : High - moderate se-
verity (2)
The Electronic Control Module (ECM) detects the following
conditions:
The differential pressure across the DPF is high for at least
100 seconds. The pressure at which this code becomes active
is dependent on the level of soot indicated by the soot model
that is calculated by the ECM.
The battery voltage is at least 10 VDC.
If equipped, the warning lamp will flash. The engine will be
derated.
3251-0
Particulate Trap Differential Pressure : High - most severe (3)
The Electronic Control Module (ECM) detects the following
conditions:
The differential pressure across the DPF is very high for at
least 100 seconds. The pressure at which this code becomes
active is dependent on the level of soot indicated by the soot
model that is calculated by the ECM.
The battery voltage is at least 10 VDC.
If equipped, the warning lamp will flash and the shutdown lamp
will come on.
3719-0
Aftertreatment 1 Diesel Particulate Filter Soot Load Percent :
High - most severe (3)
The ECM detects that the soot level in the DPF is high.
The warning lamp will come on.
3719-16
Aftertreatment 1 Diesel Particulate Filter Soot Load Percent :
High - moderate severity (2)
The ECM detects that the soot load in the DPF is very high.
The warning lamp will flash. The engine may be derated.
The Electronic Control Module (ECM) uses the Diesel
Particulate Filter (DPF) differential pressure sensor to
monitor the soot load in the DPF. An excessive
accumulation of soot in the DPF can be caused by
the following faults:
Probable Causes
• Faulty injectors
• Individual malfunctioning cylinders
• Low exhaust gas temperature
• A faulty valve in the NOx Reduction System (NRS)
Recommended Actions
Note:
The procedures have been listed in order of
probability. Complete the procedures in order.
Note:
Engine operation must be kept to a minimum in
order to minimize the amount of soot that is created.
Follow the troubleshooting procedure in order to
minimize the amount of engine operation.
50
UENR0612
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