Suzuki XL7 2007 Service Manual page 221

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 Testing
1. Verify DTCs P0458, P0459, P0498, P0499, P0452,
or P0453 are not set.
➢ If a DTC is set, refer to "Diagnostic Trouble Code
(DTC) List - Vehicle Diagnostic Information: ".
2. Disconnect the purge line from the EVAP purge
valve.
3. Ignition ON, observe the fuel tank pressure sensor
parameter with a scan tool. The FTP sensor
parameter should be 0 inches H2O. If the pressure is
not at 0 inches H2O, verify the FTP sensor voltage is
less than 4.7 volts.
➢ If the FTP sensor voltage is more than 4.7 volts,
refer to "DTC P0452 or P0453".
4. Reconnect all previously disconnected EVAP
hardware.
NOTE
Refer to the J 41413-200 Evaporative
Emissions System Tester (EEST) operation
manual for detailed instructions.
Engine General Information and Diagnosis:
5. Remove the fuel fill cap and connect the GE-41415-
50 to the fuel tank filler neck. Connect the J 41413-
200 to the GE-41415-50.
6. Ignition ON, seal the EVAP system with a scan tool.
7. Turn the nitrogen/smoke valve on the J 41413-200 to
nitrogen.
NOTE
DO NOT exceed the specified value in this
step. Exceeding the specified value may
produce incorrect test results.
8. Use the remote switch to activate the J 41413-200
and pressurize the fuel tank with nitrogen to 5 inches
H20.
9. While observing the FTP sensor parameter with a
scan tool, command the EVAP vent valve OFF.
Verify the FTP Sensor parameter is 0 inches H2O.
➢ If not at the specified value, test for a blockage or a
restriction in the EVAP vent hose, or replace the
EVAP vent solenoid valve.
10. 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.
Repair Instructions
• "Evaporative Emission Canister Vent Solenoid Valve
Replacement: "
• "Evaporative Emission Canister Vent Hose
Replacement: "
Repair Verification
1. Ignition ON, seal the EVAP system with a scan tool.
2. Turn the nitrogen/smoke valve on the J 41413-200 to
nitrogen.
NOTE
DO NOT exceed the specified value in this
step. Exceeding the specified value may
produce incorrect test results.
3. Use the remote switch to activate the J 41413-200
and pressurize the fuel tank with nitrogen to 5 inches
H20.
4. While observing the FTP sensor parameter with a
scan tool, command the EVAP vent valve OFF.
5. Verify the FTP Sensor parameter is 0 inches H2O.
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