and/or on-line repair information
availability.
z
Is any related Service Bulletins
available?
the next step.
No
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 related pending code or
stored DTCs.
z
Is other DTCs present?
Yes
Go to the appropriate DTC
troubleshooting.
(See
DTC TABLE [MZI-3.5]
.)
No
Go to the next step.
4
INSPECT GAS LEAKAGE OF
EXHAUST SYSTEM
z
Visually inspect for exhaust gas
leakage in exhaust system.
z
Are there gas leakage?
Yes
Repair or replace malfunctioning exhaust
parts, then go to Step 7.
No
Go to the next step.
5
INSPECT INSTALLATION OF
FRONT AND REAR HO2S
z
Inspect for looseness of front and
rear HO2Ss.
z
Are they it normal?
Yes
Go to the next step.
No
Retighten sensor, then go to Step 7.
6
INSPECT TWC
z
Clear the DTC using the M-MDS.
z
Cycle the ignition switch off then
back to the ON position.
z
Inspect the TWC.
z
Is it normal?
Yes
Go to the next step.
No
Replace the TWC, then go to the next step.
7
VERIFY TROUBLESHOOTING OF
DTC P0420, P0430 HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors are reconnected.
z
Turn the ignition switch to the ON
position (Engine off).
z
Clear the DTC from the PCM
memory using the M-MDS.
z
Start the engine and run it at idle.
z
Retrieve DTCs using the M-MDS.
Yes
Replace the PCM, then go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
No
Go to the next step.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:32 AM
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© 2005 Mitchell Repair Information Company, LLC.