Mazda CX-9 Grand Touring 2009 Manual page 1381

POSSIBLE
CAUSE
DIAGNOSTIC PROCEDURE
NO.28 FUEL FILLING SHUT OFF CONCERNS (MZI-3.7) DIAGNOSTIC PROCEDURE
STEP
Connect the M-MDS to the DLC-2.
Turn the ignition switch to the ON position
1 (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?
Remove the fuel-filler pipe.
Make sure the nonreturn valve is installed
2 properly.
Inspect nonreturn valve operation.
Is the nonreturn valve normal?
Verify test results.
If normal, return to diagnostic index to service any additional symptoms.
(See SYMPTOM DIAGNOSTIC INDEX [MZI-3.7].)
2008 Mazda CX-9 Grand Touring
2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9
fuel.
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injuries or death and damage. Fuel can also
irritate skin and eyes. To prevent this, always complete
"BEFORE SERVICE PRECAUTION" and "AFTER SERVICE
PRECAUTION" described in this manual.
(See BEFORE SERVICE PRECAUTION [MZI-3.7] .)
(See AFTER SERVICE PRECAUTION [MZI-3.7] .)
CAUTION:
Disconnecting/connecting quick release connector without cleaning it
may cause damage to fuel pipe and quick release connector. Always
clean quick release connector joint area before
disconnecting/connecting, and make sure that it is free of foreign
material.
INSPECTION ACTION
DTC is displayed:
Yes Go to the appropriate DTC inspection.
(See DTC TABLE [MZI-3.7] .)
No DTC is displayed:
No
Go to the next step.
Inspect for the following:
Improper use of fuel nozzle
Yes
Fuel is not inserted correctly.
Inspect fuel shut-off valve.
Nonreturn valve is installed improperly:
Reinstall the nonreturn valve to proper
No
Nonreturn valve does not operate properly:
Replace the nonreturn valve.
position.