z
Is any related Service Bulletins
available?
No
Go to the next step.
3
INSPECT OCV (LH) CONNECTOR
FOR POOR CONNECTION
z
Turn the ignition switch off.
z
Disconnect the OCV (LH)
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 10.
No
Go to the next step.
4
INSPECT OCV (LH)
z
Inspect the OCV (LH).
(see
OIL CONTROL VALVE
(OCV) INSPECTION [MZI-
3.5].
)
z
Is there any malfunction?
Yes
Replace the OCV (LH), then go to Step 10.
(see
OIL CONTROL VALVE (OCV)
REMOVAL/INSTALLATION [MZI-
3.5].
)
No
Go to the next step.
5
INSPECT OCV (LH) CIRCUIT FOR
OPEN CIRCUIT
z
Turn the ignition switch to the ON
position (Engine off).
z
Measure the voltage between the
OCV (LH) connector terminal A
(wiring harness-side) and body
ground.
z
Is the voltage B+?
Yes
Go to the next step.
No
Repair or replace suspected part, then go to
Step 10.
6
INSPECT OCV (LH) CIRCUIT FOR
SHORT TO POWER SUPPLY
z
Disconnect the PCM connector.
z
Turn the ignition switch to the ON
position (Engine off).
z
Measure the voltage between the
OCV (LH) connector terminal B
and body ground.
z
Is the voltage B+?
Yes
Repair or replace suspected part, then go to
Step 10.
No
Go to the next step.
7
INSPECT OCV (LH) CIRCUIT FOR
SHORT TO GROUND
Yes
Repair or replace suspected part, then go to
Step 10.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:29 AM
Page 36
© 2005 Mitchell Repair Information Company, LLC.