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-3.7]
.)
z
Is there any malfunction?
Yes
Replace the OCV (LH), then go to Step 10. (See
OIL CONTROL VALVE (OCV)
REMOVAL/INSTALLATION [MZI-3.7]
.)
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
z
Turn the ignition switch to the ON
position (Engine off).
z
Inspect for continuity between OCV
(LH) terminal B (wiring harness-side)
and body ground.
Yes
Repair or replace suspected part, then go to Step
10.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:34 AM
Page 38
© 2005 Mitchell Repair Information Company, LLC.
