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Emissions Parameters
Diesel Particulate Filter #1 Serial Number
OEM
Diesel Particulate Filter #2 Serial Number
OEM
Description:
Diesel Particulate Filter (DPF) #1 Serial Number and, if
applicable, DPF #2 Serial Number must be entered to
match the installed DPFs. Each DPF is equipped with a
resistor pack inside the DPF sensor housing. The ECM
auto-detects the installed DPF(s) and verifi es the correct
DPF(s) has been installed.
If an incorrect DPF is installed, a diagnostic code of
3936-2: Aftertreatment DPF System Incorrect will be
active. The engine will also be derated until a valid DPF
is installed or the correct DPF Serial Number is entered
using the Caterpillar Service Tool.
Available:
EPA’07 and newer C7, C9, C13 & C15 on-highway engines
Range:
Engine Range
Cat
Default
EPA’07 and newer C7,
C9, C13 & C15
N/A 0000
Advantages:
Entering the proper DPF serial number(s) ensures the
correct size fi lters have been installed.
Recommendations:
✔This parameter should only be programmed by a
qualifi ed service technician as part of the normal
diesel particulate fi lter (DPF) maintenance.