Perkins 854E-E34TA, Руководство по устранению неисправностей, Страница: 226 / 252

If the engine is equipped with an air filter restriction
switch, the type of switch that is installed can be
either
“ Normally Open ” or “ Normally Closed ” . The
parameter for the type of switch that is installed can
be set using the electronic service tool.
Use the electronic service tool to check which type of
switch is installed in the application before continuing
with this procedure.
Ensure that the parameter is set correctly for the type
of switch that is installed in the application. Refer to
the OEM for more information.
Table 109
Diagnostic Summary for a ““ Normally Open ”” Air Filter Restric-
tion Switch
Engine Condition
Switch State
Active Diagnostic
Code
Not running (key on) Open Normal condition
Running Open Normal Condition
(no air filter restric-
tion detected)
Not running Closed 107-2
Running Closed 107-15 or 107-16
Table 110
Diagnostic Summary for a ““ Normally Closed ”” Air Filter Re-
striction Switch
Engine Condition
Switch State
Active Diagnostic
Code
Not running (key on) Open 107-2
Running Open 107-15 or 107-16
Not running Closed Normal condition
Running Closed Normal Condition
(no air filter restric-
tion detected)
Note: If a 107-15 or a 107-16 diagnostic code is
active, this indicates that the air inlet is restricted.
Refer to Troubleshooting, “Inlet Air Is Restricted”.
Illustration 74 g03636737
Schematic diagram for an air filter restriction switch
Not all connectors are shown. Refer to the Electrical Schematic for the application.
226 UENR0612
Circuit Tests
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