Suzuki XL7 2007 Service Manual page 217

Reference Information
Schematic Reference
"Evaporative Emissions Hose Routing Diagram: "
Description and Operation
"Evaporative Emission Control System Description: "
DTC Type Reference
"Powertrain Diagnostic Trouble Code (DTC) Type
Definitions"
Scan Tool Reference
• "Scan Tool Data List - Engine Controls - 3.6L (LY7)"
• "Scan Tool Data Definitions - Engine Controls - 3.6L
(LY7)"
• "Scan Tool Output Controls - Engine Controls - 3.6L
(LY7)"
Special tool
J 41413-SPT High Intensity White Light
J 41413-VLV EVAP Port Vent Fitting Tool
J 41413-200 Evaporative Emissions System Tester
(EEST)
J 41413-300 EVAP Cap and Plug Kit
CH-48096 EVAP Service Port Access Tool
GE-41415-50 Fuel Tank Cap Adapter
Circuit/System Verification
1. Verify the following conditions do not exist in the
EVAP system:
– Loose, incorrect, missing, or damaged fuel fill cap
– Loose, missing, or damaged service port schrader
valve
– A damaged EVAP purge solenoid
– Disconnected, incorrectly routed, kinked, or
damaged EVAP pipes and hoses
– A damaged EVAP vent valve or EVAP canister
➢ If you find any of the above conditions, repair as
necessary.
NOTE
Refer to the J 41413-200 operation manual for
detailed instructions.
2. Remove the fuel fill cap. Connect the GE-41415-50
to the fuel tank filler neck. Connect the J 41413-200
to the GE-41415-50.
3. Calibrate the J 41413-200 Flow Meter to the correct
leak orifice for the vehicle.
4. Command the EVAP vent solenoid closed with a
scan tool.
NOTE
Larger volume fuel tanks and/or those with
lower fuel levels may require several minutes
for the floating indicator to stabilize.
Engine General Information and Diagnosis:
5. Activate the J 41413-200 and compare the flow
meter's stable floating indicator position to the red
flag. The floating indicator should be below the red
flag.
➢ If the floating indicator is above the red flag, test for
a leak in the EVAP system.
6. If the vehicle passes the Circuit/System Verification
Test, then operate the vehicle within the conditions
for running the DTC. You may also operate the
vehicle within the conditions that are captured in the
Freeze Frame/Failure Records List.
Circuit/System Testing
NOTE
• You must start with the Circuit/System
Verification before proceeding with Circuit/
System Testing.
• Ensure that the vehicle underbody
temperature is similar to the ambient
temperature and allow the surrounding air
to stabilize before starting the diagnostic
procedure. The system flow will be less
with higher temperatures.
1. Turn the nitrogen/smoke valve on the control panel
to SMOKE.
2. Command the EVAP vent solenoid closed with a
scan tool.
3. Use the remote switch to introduce smoke into the
EVAP system.
4. Use the J 41413-VLV to open the EVAP service port,
if equipped. Or, disconnect the EVAP purge pipe
from the purge solenoid. Once smoke is observed,
remove the tool, or reconnect the EVAP purge pipe.
NOTE
Introduce smoke at 15 second intervals while
testing the system.
5. Verify the entire EVAP system with the J 41413-SPT.
Smoke should not be observed.
➢ If smoke is observed, repair the condition as
necessary.
6. Verify the EVAP system using the EVAP service port.
Connect the J 41413-200 nitrogen/smoke supply
hose to the EVAP service port. Connect the CH-
48096 EVAP Service Port Access Tool between the
EVAP purge solenoid and the EVAP purge pipe, if
necessary.
1A-112