DTC P1464 [MZI-3.7]
DTC P1464 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P1464 (MZI-3.7) DIAGNOSTIC PROCEDURE
VENTILATION (PCV) VALVE
HEATER FITTING INSPECTION
[MZI-3.7]
.)
z
Is there any malfunction?
No
Go to the next step.
9
VERIFY TROUBLESHOOTING OF DTC
P145E HAS BEEN COMPLETED
z
Verify that all disconnected connectors
reconnected.
z
Clear the DTC from the PCM memory
using the M-MDS.
z
Perform the "KOEO or KOER self-test"
using the M-MDS. (See
KOEO/KOER
SELF TEST [MZI-3.7]
.)
z
Is the PENDING CODE for the 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.
10
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 P1464
A/C demand out of self-test range
DETECTION
CONDITION
z
The DTC sets when the PCM receives a request for A/C during the
self-test.
POSSIBLE CAUSE
z
A/C or defrost on during self-test
z
A/C relay circuit short to voltage
z
A/C switch malfunction
z
A/C relay malfunction
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
z
Has FREEZE FRAME DATA been
Yes Go to the next step.
No
Record FREEZE FRAME DATA on the repair
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:41 AM
Page 342
© 2005 Mitchell Repair Information Company, LLC.
