availability.
z
Is any related Service Bulletins
available?
No
Go to the next step.
3
VERIFY RELATED PENDING
CODE OR STORED DTCs
z
Turn the ignition switch off then
to the ON position (Engine off).
z
Verify related pending code or
stored DTCs.
z
Are other DTCs present?
NOTE:
z
If DTC P0455 is present,
diagnose that DTC first.
(see ENGINE CONTROL
SYSTEM OPERATION
INSPECTION [MZI-3.5] .)
Yes
Go to the appropriate DTC
troubleshooting.
(See
DTC TABLE [MZI-3.5]
.)
No
Go to the next step.
4
INSPECT FOR MISSING OR
LEAKING FUEL FILLER CAP
z
Check for missing or loose fuel
filler cap.
z
Check for possible cross-threaded
fuel filler cap.
z
Is a concern present?
Yes
Repair or replace if necessary. Go to the
next step.
No
Go to Step 6.
5
EVAP SYSTEM LEAK TEST
z
Perform the EVAP system leak
test.
(see
ENGINE CONTROL
SYSTEM OPERATION
INSPECTION [MZI-3.5]
.)
z
Are the test results normal?
Yes
Go to Step 6.
No
Leakage still exists. Go to the P0455
Troubleshooting.
(see
ENGINE CONTROL SYSTEM
OPERATION INSPECTION [MZI-
3.5]
.)
6
VERIFY TROUBLESHOOTING OF
DTC P0457 HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors are reconnected.
z
Turn the ignition switch to the ON
Yes
Replace the PCM, then go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:33 AM
Page 242
© 2005 Mitchell Repair Information Company, LLC.