DTC P1639 [MZI-3.7]
DTC P1639 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P1639 (MZI-3.7) DIAGNOSTIC PROCEDURE
5
VERIFY TROUBLESHOOTING OF
DTC P1635 HAS BEEN COMPLETED
z
Verify that all disconnected
connectors reconnected.
z
Turn the ignition switch to the ON
position (Engine off).
z
Clear DTC from PCM memory using
M-MDS.
z
Start engine and warm up it
completely.
z
Is same 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.
6
VERIFY AFTER REPAIR
PROCEDURE
z
Perform "AFTER REPAIR
PRECAUTION". (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 P1639
Vehicle ID block corrupted, that not programmed
DETECTION
CONDITION
z
This DTC indicates that the VID block is not programmed or the
information within is corrupt.
POSSIBLE CAUSE
z
New PCM
z
Incorrect PCM
z
Incorrect VID configuration
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.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Yes Perform repair or diagnosis according to the
available Service Bulletins.
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 350
© 2005 Mitchell Repair Information Company, LLC.
