Mazda CX-9 Grand Touring. Manual — part 286

DTC P061C [MZI-3.7]

DTC P061C (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES

3

ON position (Engine off).



Verify related pending code or stored
DTCs.



Are other DTCs present?

No

Go to the next step.

4

INSPECT FOR CORRECT PCM
OPERATION



Disconnect all the PCM connectors.



Visually inspect for:



Pushed out pins



Corrosion



Connect all the PCM connectors and
verify that they seat correctly.



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.

5

VERIFY TROUBLESHOOTING OF
DTC P061F 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.



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.

6

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 P061C

Internal control module engine RPM performance

2008 Mazda CX-9 Grand Touring

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:08:39 AM

Page 277

© 2005 Mitchell Repair Information Company, LLC.

DIAGNOSTIC PROCEDURE

DTC P061C (MZI-3.7) DIAGNOSTIC PROCEDURE

DETECTION CONDITION



Indicates that a calculation error occurred in the PCM.

POSSIBLE CAUSE



CKP sensor circuit is open or short.



CKP sensor circuit intermittent



CKP sensor malfunction



CMP sensor circuit is open or short.



CMP sensor circuit intermittent



CMP sensor malfunction



PCM malfunction

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 the
available Service Bulletins.



If the vehicle is not repaired, go to the
next step.

No

Go to the next step.

3

VERIFY RELATED PENDING CODE
OR STORED DTCs



Turn the ignition switch off then to the
ON position (Engine off).



Verify related pending code or stored
DTCs.



Are other DTCs present?

Yes

Go to the appropriate DTC troubleshooting. (See
DTC TABLE [MZI-3.7].)

No

Go to the next step.

4

INSPECT CKP SENSOR SIGNAL SENT
TO PCM

NOTE:



The battery should be fully charged
and the starting system should be
functioning properly.

Yes 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 10:08:39 AM

Page 278

© 2005 Mitchell Repair Information Company, LLC.



Disable the inertia switch.



Turn the ignition switch to the ON
position (Engine off)



Access the PCM and monitor the RPM
PID.



Crank the engine.



Is the RPM greater than 150 rpm?

No

Inspect the CKP sensor or related harness.

Repair or replace suspected part, then go to the

next step.

5

INSPECT FOR CORRECT PCM
OPERATION



Disconnect all the PCM connectors.



Visually inspect for:



Pushed out pins



Corrosion



Connect all the PCM connectors and
verify that they seat correctly.



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.

6

VERIFY TROUBLESHOOTING OF
DTC P061C 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.



Perform the "KOEO and KOER self-
test". (See KOEO/KOER SELF
TEST [MZI-3.7].)



Retrieve the 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.

7

VERIFY AFTER REPAIR
PROCEDURE



Perform the "AFTER REPAIR
PROCEDURE". (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.

2008 Mazda CX-9 Grand Touring

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:08:39 AM

Page 279

© 2005 Mitchell Repair Information Company, LLC.

DTC P0620 [MZI-3.7]

DTC P0620 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC P0620

Generator control circuit

DETECTION

CONDITION



The PCM reads the generator and sends a DTC through the network when the
generator indicates a concern.

POSSIBLE CAUSE



Drive belt misadjustment



Generator malfunction



Open circuit between generator terminal LI and PCM terminal 2AG



Open circuit between generator terminal B and battery positive terminal



Short to ground between generator terminal LI and PCM terminal 2AG



Short to power supply between generator terminal LI and PCM terminal 2AG



Connector or terminal malfunction



PCM malfunction

2008 Mazda CX-9 Grand Touring

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:08:39 AM

Page 280

© 2005 Mitchell Repair Information Company, LLC.