2
INFORMATION AVAILABILITY
z
Verify related Service Bulletins
and/or on-line repair information
availability.
z
Is any related repair information
available?
Yes
Perform the repair or diagnosis according to the
available repair information.
z
If the vehicle is not repaired, go to the next
step.
No
Go to the next step.
3
INSPECT FUEL TANK PRESSURE
SENSOR CONNECTION FOR POOR
CONNECTION
z
Turn the ignition switch off.
z
Disconnect fuel tank pressure sensor
connector.
z
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
z
Are there any malfunction?
Yes
Repair or replace suspected part, then go to Step
9.
No
Go to the next step.
4
VERIFY FUEL TANK PRESSURE
SENSOR SIGNAL CIRCUIT FOR
SHORT TO POWER SUPPLY
z
Turn the ignition switch to the ON
position (Engine off).
z
Measure the voltage between the
following terminals:
{
Fuel tank pressure sensor
terminal A (wiring harness-
side) and body ground.
{
Fuel tank pressure sensor
terminal C (wiring harness-
side) and body ground.
z
Are there voltage B+?
Yes
Repair or replace suspected part, then go to Step
9.
No
Go to the next step.
5
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
z
Turn the ignition switch off.
z
Disconnect the fuel tank pressure
sensor and PCM connector.
z
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
z
Is there any malfunction?
Yes
Repair or replace suspected part, then go to Step
9.
No
Go to the next step.
VERIFY FUEL TANK PRESSURE
SENSOR CIRCUIT FOR OPEN
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:38 AM
Page 219
© 2005 Mitchell Repair Information Company, LLC.
