Mazda CX-9 Grand Touring. Manual — part 304
DTC P1635 [MZI-3.7]
DTC P1635 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P1635 (MZI-3.7) DIAGNOSTIC PROCEDURE
REPAIR PROCEDURE [MZI-3.7].)
Are any DTCs present?
No
Troubleshooting completed.
DTC P1635
Tire/axle out of acceptable range
DETECTION
CONDITION
This DTC indicates the tire and axle information contained in the vehicle
identification block does not match the vehicle hardware.
POSSIBLE CAUSE
Incorrect tire size
Incorrect axle ratio
Incorrect vehicle identification configuration parameters
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
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
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related Service Bulletins
available?
Yes
Perform repair or diagnosis according to
available Service Bulletins.
If vehicle is not repaired, go to the next
step.
No
Go to the next step.
3
VERIFY VEHICLE IDENTIFICATION
TIRE DATA
Turn the ignition switch to the ON
position.
Connect the M-MDS to the DLC-2.
Access the data of the tire size.
Is it the same as a equipped tire?
Yes Go to the next step.
No
Perform PCM configuration procedure, then go
to Step 5. (See PCM CONFIGURATION
[MZI-3.7] .)
4
VERIFY GENUINE TIRES ARE
INSTALLED
Is genuine tires are equipped?
Yes Go to the next step.
No
Change to the genuine tire, then go to the next
step.
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 349
© 2005 Mitchell Repair Information Company, LLC.
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
Verify that all disconnected
connectors reconnected.
Turn the ignition switch to the ON
position (Engine off).
Clear DTC from PCM memory using
M-MDS.
Start engine and warm up it
completely.
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
Perform "AFTER REPAIR
PRECAUTION". (See AFTER
REPAIR PROCEDURE [MZI-
3.7].)
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
This DTC indicates that the VID block is not programmed or the
information within is corrupt.
POSSIBLE CAUSE
New PCM
Incorrect PCM
Incorrect VID configuration
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
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.
DTC P1650 [MZI-3.7]
DTC P1650 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
2
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related Service Bulletins
available?
If the vehicle is not repaired, go to the
next step.
No
Perform the PCM reprogramming procedure.
(See PCM CONFIGURATION [MZI-3.7] .)
Then go to the next step.
3
VERIFY TROUBLESHOOTING OF
DTC P1639 HAS BEEN COMPLETED
Verify that all disconnected
connectors are reconnected.
Turn the ignition switch to the ON
position (Engine off).
Clear the DTC from the PCM memory
using the M-MDS.
Start the engine and perform the
KOEO and KOER self-test.
Retrieve DTCs using the M-MDS.
Is the PENDING CODE for this 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.
4
VERIFY AFTER REPAIR
PROCEDURE
Perform the "AFTER REPAIR
PROCEDURE". (See AFTER
REPAIR PROCEDURE [MZI-3.7].)
Are any DTC present?
Yes
Go to the applicable DTC inspection. (See DTC
TABLE [MZI-3.7].)
No
Troubleshooting completed.
DTC P1650
PSP switch out of self-test range
DETECTION
CONDITION
In the KOEO self-test, this DTC indicates the PSP input to the PCM is high. In the
KOER self-test, this DTC indicates the PSP input did not change state.
POSSIBLE CAUSE
The steering wheel must be turned during KOER self-test
PSP switch malfunction
Open circuit between PSP switch terminal A and PCM terminal 2I
Short to ground circuit between PSP switch terminal A and PCM terminal 2I
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 351
© 2005 Mitchell Repair Information Company, LLC.
DIAGNOSTIC PROCEDURE
DTC P1650 (MZI-3.7) DIAGNOSTIC PROCEDURE
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
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
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related Service Bulletins
available?
Yes
Perform repair or diagnosis according to
available Service Bulletins.
If vehicle is not repaired, go to next step.
No
Go to the next step.
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 352
© 2005 Mitchell Repair Information Company, LLC.
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