DTC P1397 (MZI-3.7) DIAGNOSTIC PROCEDURE
DTC P1450 [MZI-3.7]
DTC P1450 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
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
Go to the next step.
3
INSPECT THE BATTERY
z
Turn the ignition switch off.
z
Inspect the battery.
z
Is the battery normal?
Yes
Inspect charging system. (See
QUICK
DIAGNOSTIC CHART [MZI-3.7]
.)
z
If there is any malfunction, repair or
replace malfunctioning part, then go to
the next step.
No
Replace the battery, then go to the next step.
4
VERIFY TROUBLESHOOTING OF
DTC P1397 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.
5
VERIFY AFTER REPAIR PROCEDURE
z
Perform "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.
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 334
© 2005 Mitchell Repair Information Company, LLC.
