DTC P0012 [MZI-3.7]
DTC P0012 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
3
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-3.7]
.)
Yes Go to the next step.
No
Reinstall the timing chain, then go to Step 5.
4
INSPECT OCV (RH)
z
Inspect the OCV (RH).
(See
OIL CONTROL VALVE
(OCV) INSPECTION [MZI-3.7]
.)
z
Is there any malfunction?
Yes
Replace the OCV (RH), then go to the next
step. (See
OIL CONTROL VALVE (OCV)
REMOVAL/INSTALLATION [MZI-3.7]
.)
No
Go to the next step.
5
VERIFY TROUBLESHOOTING OF
DTC P0011 HAS BEEN COMPLETED
z
Make sure to reconnect all
disconnected connectors.
z
Clear the DTC from the PCM memory
using the M-MDS.
z
Turn the ignition switch off.
z
Start the engine and warm it up
completely.
z
Is the same DTC present?
Yes
Replace the PCM, then go to the next step. (See
PCM REMOVAL/INSTALLATION [MZI-
3.7]
.)
No
Go to the next step.
6
VERIFY AFTER REPAIR PROCEDURE
z
Perform the "AFTER REPAIR
PROCEDURE".
(See
AFTER REPAIR
PROCEDURE [MZI-3.7]
.)
z
Are any DTCs present?
Yes Go to the applicable DTC inspection. (See
DTC
TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P0012
CMP timing over-retarded (RH)
DETECTION
CONDITION
z
The PCM monitors the variable valve timing position for over-retarded
camshaft timing. The test fails when the camshaft timing exceeds a maximum
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 32
© 2005 Mitchell Repair Information Company, LLC.
