Mazda CX-9 Grand Touring 2009 Manual page 1159

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
INFORMATION AVAILABILITY
Verify related Service Bulletins
and/or on-line repair information
2
availability.
Is any related Service Bulletins
available?
INSPECT FUEL TANK PRESSURE
SENSOR CONNECTOR FOR POOR
CONNECTION
Turn the ignition switch off.
3
Disconnect the fuel tank pressure
sensor connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Are there any malfunction?
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
4
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Are there any malfunction?
INSPECT FUEL TANK PRESSURE
SENSOR CIRCUIT FOR SHORT TO
POWER SUPPLY
Turn the ignition switch to the ON
position (Engine off).
5
Measure the voltage continuity
between fuel tank pressure sensor
terminal C (wiring harness-side) and
body ground.
Is the voltage B+?
INSPECT FUEL TANK PRESSURE
SENSOR
Inspect the fuel tank pressure sensor.
6
(See FUEL TANK PRESSURE
SENSOR INSPECTION [MZI-
3.7] .)
Is there any malfunction?
2008 Mazda CX-9 Grand Touring
Perform repair or diagnosis according to the
available Service Bulletins.
Yes
No
Yes Repair or replace suspected part, then go to Step 7.
No
Yes Repair or replace suspected part, then go to Step 7.
No
Yes Repair or replace suspected part, then go to Step 7.
No
Replace the evaporative hose component, then go
Yes to the next step. (See FUEL TANK
REMOVAL/INSTALLATION [MZI-3.7] .)
No
If the vehicle is not repaired, go to the next
step.
Go to the next step.
Go to the next step.
Go to the next step.
Go to the next step.
Go to the next step.