Suzuki XL7 2007 Service Manual page 144

1A-39 Engine General Information and Diagnosis:
Scan Tool Output
Control
Engine Speed Control
EVAP Purge Solenoid
EVAP Purge/Seal
EVAP Vent Solenoid
Fuel Injector Balance
Additional Menu
Selection(s)
This function controls the idle speed override in 25 RPM, 100 RPM,
and 500 RPM increments, from the base idle speed to 1,400 RPM.
The scan tool initiates the test when the following conditions are
Special Functions/
met:
Engine Control Module/
• The transmission is in park or neutral.
Engine Speed/Throttle
• The engine speed is less than 1,000 RPM.
The engine speed will remain in the commanded state until
cancelled by the scan tool.
Special Functions/
This function controls the evaporative emission (EVAP) purge
Engine Control Module/
solenoid valve. The normal commanded state is NONE. The
Output Controls/EVAP
system will increase or decrease the amount of purge by changing
System
the duty cycle of the purge valve in 10 percent increments within a
range of 0-100 percent. The system remains in the commanded
state until cancelled by the scan tool or the fuel tank pressure (FTP)
sensor exceeds −24 mm Hg (−12 inch H20).
Special Functions/
This function activates both the EVAP purge solenoid valve and
Engine Control Module/
EVAP vent solenoid to seal the EVAP system. When activated, the
Output Controls/EVAP
purge valve is commanded to 0 percent and the vent valve is
System
commanded ON, Not-venting. The normal commanded state for
both solenoids is None. Both of the solenoids remain in the
commanded state until cancelled by the scan tool or the FTP
sensor exceeds −24 mm Hg (−12 inch H20).
Special Functions/
This function controls the EVAP vent solenoid. The normal
Engine Control Module/
commanded state is NONE. When commanded ON, the vent valve
Output Controls/EVAP
switches to Not-venting. The system remains in the commanded
System
state unless one of the following conditions occur:
• Cancelled by the scan tool
• The EVAP canister purge solenoid is more than 0 percent, and
This function enables the fuel injector in order to verify the correct
fuel injector flow. The ECM will pulse the selected fuel injector when
the following conditions are met:
Special Functions/
• All instruction on the scan tool is complete.
Engine Control module/
• A fuel injector is selected.
Fuel System
• The ignition is ON with the engine OFF.
The selected fuel injector can only be flowed/pulsed once per
ignition cycle.
NOTE
The EVAP Purge Solenoid Command parameter may
not change states when using this output control.
NOTE
The EVAP Purge and Vent Solenoid Command
parameters may not change states when using this
output control.
NOTE
The EVAP Vent Solenoid Command parameter may not
change states when using this output control.
the FTP sensor exceeds −24 mm Hg (−12 inch H20).
Description