DIAGNOSTIC PROCEDURE
DTC P0012 DIAGNOSTIC PROCEDURE
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
z
Has FREEZE FRAME DATA been
recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on the
repair order, then go to the next step.
2
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
z
Verify related Service Bulletins
and/or on-line repair information
availability.
z
Is any related Service Bulletins
available?
Yes
Perform repair or diagnosis according to
the available Service Bulletins.
z
If the vehicle is not repaired, go to
the next step.
No
Go to the next step.
3
VERIFY ENGINE OIL PRESSURE
z
Start the engine.
z
Does the oil pressure warning light
illuminate?
Yes
Inspect the engine oil pressure, then go to
Step 6.
(see
OIL PRESSURE INSPECTION
[MZI-3.5]
)
No
Go to the next step.
4
VERIFY TIMING CHAIN
INSTALLATION
z
Stop the engine.
z
Remove the front cover.
z
Is the camshaft timing mark at the
correct point?
(see
TIMING CHAIN
REMOVAL/INSTALLATION
[MZI-3.5]
.)
Yes
Go to the next step.
No
Reinstall the timing chain, then go to
Step 6.
5
INSPECT OCV (RH)
z
Inspect the OCV (RH).
(see
OIL CONTROL VALVE
(OCV) INSPECTION [MZI-3.5].
)
z
Is there any malfunction?
Yes
Replace the OCV (RH), then go to the
next step.
No
Go to the next step.
6
VERIFY TROUBLESHOOTING OF
DTC P0012 COMPLETED
z
Make sure to reconnect all
Yes
Replace the PCM, then go to the next
step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
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