DIAGNOSTIC PROCEDURE
DTC P0604 (MZI-3.5) DIAGNOSTIC PROCEDURE
CONDITION
POSSIBLE CAUSE
z
Module reprogramming
z
Aftermarket performance products.
z
PCM malfunction
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
Perform PCM reprograming using the M-
MDS, then go to next step.
3
VERIFY TROUBLESHOOTING OF
P0604 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
Perform the "KOEO and KOER
self-test".
(See
KOEO/KOER SELF TEST
[MZI-3.5]
.)
z
Retrieve DTCs using the M-MDS.
z
Is the PENDING CODE for this
DTC present?
Yes
Replace the PCM, go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
No
Go to the next step.
4
VERIFY AFTER REPAIR
PROCEDURE
z
Perform the "After Repair
Yes
Go to the applicable DTC inspection.
(See
DTC TABLE [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 9:26:34 AM
Page 284
© 2005 Mitchell Repair Information Company, LLC.