z
Verify related Service Bulletins
and/or on-line repair information
availability.
z
Is any related Service Bulletins
available?
z
If the vehicle is not repaired, go to
the next step.
No
Perform the PCM reprogramming
procedure.
(see
PCM CONFIGURATION [MZI-
3.5]
.)
Then go to the next step.
3
VERIFY RELATED PENDING
CODE OR STORED DTCs
z
Turn the ignition switch off then
to the ON position (Engine off).
z
Verify the related PENDING
CODE or stored DTCs using the
M-MDS.
Yes
Go to the appropriate DTC
troubleshooting.
(See
DTC TABLE [MZI-3.5]
.)
No
Go to the next step.
4
IDENTIFY TRIGGER DTC FOR
FREEZE FRAME DATA
z
Is DTC P2270 or P2272 on the
FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to the troubleshooting for the DTC on
the "FREEZE FRAME DATA".
(See
DTC TABLE [MZI-3.5]
.)
5
INSPECT FOR EXHAUST GAS
LEAKAGE
Visually inspect for exhaust
gas leakage between the TWC and the
rear HO2S.
z
Is there any malfunction?
Yes
Repair or replace the malfunctioning parts.
Then go to the next step.
No
Go to the next step.
6
INSPECT REAR HO2S
z
For DTC P02270 Inspect the rear
HO2S(RH)
z
For DTC P02272 Inspect the rear
HO2S(LH)
(see
REAR HEATED OXYGEN
SENSOR (HO2S) INSPECTION
[MZI-3.5].
)
z
Is there any malfunction?
Yes
Repair or replace the malfunctioning parts.
Then go to the next step.
No
Go to the next step.
7
VERIFY TROUBLESHOOTING OF
DTC P2270, P2272 HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors are reconnected.
z
Turn the ignition switch to the ON
Yes
Replace the PCM, then go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:40 AM
Page 455
© 2005 Mitchell Repair Information Company, LLC.