Mazda CX-9 Grand Touring 2009 Manual page 1214

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
VERIFY TROUBLESHOOTING OF
DTC P1635 HAS BEEN COMPLETED
Verify that all disconnected
connectors reconnected.
Turn the ignition switch to the ON
5
position (Engine off).
Clear DTC from PCM memory using
M-MDS.
Start engine and warm up it
completely.
Is same DTC present?
VERIFY AFTER REPAIR
PROCEDURE
Perform "AFTER REPAIR
6
PRECAUTION". (See AFTER
REPAIR PROCEDURE [MZI-
3.7].)
Are any DTCs present?
DTC P1639 [MZI-3.7]
DTC P1639 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DTC P1639
DETECTION
CONDITION
POSSIBLE CAUSE
DIAGNOSTIC PROCEDURE
DTC P1639 (MZI-3.7) DIAGNOSTIC PROCEDURE
STEP
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
Has FREEZE FRAME DATA been
recorded?
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
2008 Mazda CX-9 Grand Touring
Vehicle ID block corrupted, that not programmed
This DTC indicates that the VID block is not programmed or the
information within is corrupt.
New PCM
Incorrect PCM
Incorrect VID configuration
INSPECTION
Replace the PCM, then go to the next step. (See
Yes PCM REMOVAL/INSTALLATION [MZI-
3.7] .)
No Go to the next step.
Go to the applicable DTC inspection. (See DTC
Yes
TABLE [MZI-3.7].)
No Troubleshooting completed.
Yes Go to the next step.
Record FREEZE FRAME DATA on the repair
No
order, then go to the next step.
Yes Perform repair or diagnosis according to the
available Service Bulletins.
ACTION