Mazda CX-9 Grand Touring 2009 Manual page 1087

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
DIAGNOSTIC PROCEDURE
DTC P0455 (MZI-3.7) DIAGNOSTIC PROCEDURE
STEP INSPECTION
VERIFY FREEZE FRAME DATA
HAS BEEN RECORDED
1
Has FREEZE FRAME DATA
been recorded?
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Verify related Service Bulletins
2
and/or on-line repair information
availability.
Is any related Service Bulletins
available?
VERIFY RELATED PENDING
CODE OR STORED DTCs
Turn the ignition switch off then
3
to the ON position (Engine off).
Verify related pending code or
stored DTCs.
Are other DTCs present?
VISUALLY INSPECT FOR LARGE
EVAP SYSTEM LEAK
Check for the presence of a fuel-
filler cap. Do not tighten or check
for correct installation at this
time.
4
Verify that both the input port
vacuum hose and EVAP return
tube are attached to the CV
solenoid valve.
Verify that the CV solenoid valve
is properly attached to the
charcoal canister.
2008 Mazda CX-9 Grand Touring
Rollover valve blocked or fuel shut-off valve.
CV solenoid valve stuck open.
Mechanically inoperative Fuel tank pressure sensor.
Damaged charcoal canister.
Yes Go to the next step.
No
Yes
No
Yes
No
Yes
ACTION
Record FREEZE FRAME DATA on the repair order,
then go to the next step.
Perform repair or diagnosis according to the
available Service Bulletins.
If the vehicle is not repaired, go to the next
step.
Go to the next step.
Go to the appropriate DTC troubleshooting. (See
DTC TABLE [MZI-3.7].)
Go to the next step.
Repair or replace the EVAP components if
necessary. (See FUEL TANK INSPECTION
[MZI-3.7] .)
(See FUEL TANK PRESSURE SENSOR
INSPECTION [MZI-3.7] .)
(See CHARCOAL CANISTER, CANISTER
VENT (CV) SOLENOID VALVE, AIR FILTER