Mazda CX-9 Grand Touring. Manual — part 307

availability.



Is any related Service Bulletins
available?

step.

No

Go to the next step.

3

INSPECT THROTTLE BODY
CONNECTOR FOR POOR
CONNECTION



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



Disconnect the throttle body
connector.



Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).



Are there any malfunction?

Yes Repair or replace suspected part, then go to Step 9.

No

Go to the next step.

4

INSPECT THE THROTTLE
ACTUATOR



Inspect the throttle actuator. (See
THROTTLE BODY
INSPECTION [MZI-3.7] .)



Is there malfunction?

Yes

Replace the throttle body, then go to Step 9. (See
INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION [MZI-3.7] .)

No

Go to the next step.

5

INSPECT PCM CONNECTOR FOR
POOR CONNECTION



Turn the ignition switch off.



Disconnect the PCM connector.



Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).



Is there any malfunction?

Yes Repair or replace suspected part, then go to Step 9.

No

Go to the next step.

6

INSPECT THROTTLE ACTUATOR
CONTROL CIRCUIT FOR OPEN



Disconnect the PCM connector.



Inspect for continuity between the
following terminals:



Throttle body terminal A and
PCM terminal 2BO



Throttle body terminal B and
PCM terminal 2BR



Are there continuity?

Yes Go to the next step.

No Repair or replace suspected part, then go to Step 9.

INSPECT TP SENSOR SIGNAL

2008 Mazda CX-9 Grand Touring

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

Microsoft

Sunday, November 15, 2009 10:08:42 AM

Page 361

© 2005 Mitchell Repair Information Company, LLC.

7

CIRCUITS FOR SHORT EACH
OTHER



Turn the ignition switch off.



Disconnect the throttle body and
PCM connector.



Measure resistance between throttle
body terminal A and B.



Is the resistance more than 10
kilohms?

Yes Go to the next step.

No Repair or replace suspected part, then go to Step 9.

8

INSPECT HROTTLE ACTUATOR
CONTROL CIRCUIT FOR SHORT
TO POWER SUPPLY



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



Measure the voltage between the
following terminals:



Throttle body terminal A and
body ground.



Throttle body terminal B and
body ground.



Are there voltage B+?

Yes

Repair or replace suspected part, then go to the next
step.

No

Go to the next step.

9

VERIFY TROUBLESHOOTING OF
DTC P2100 HAS BEEN COMPLETED



Verify that all disconnected
connectors reconnected.



Clear the DTC from the PCM
memory using the M-MDS.



Perform the KOEO or KOER self-
test using the M-MDS.

(See KOEO/KOER SELF TEST
[MZI-3.7].)



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.

10

VERIFY AFTER REPAIR
PROCEDURE



Perform "AFTER REPAIR
PROCEDURE". (See AFTER
REPAIR PROCEDURE [MZI-

Yes

Go to the applicable DTC inspection. (See DTC
TABLE [MZI-3.7].)

2008 Mazda CX-9 Grand Touring

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

Microsoft

Sunday, November 15, 2009 10:08:42 AM

Page 362

© 2005 Mitchell Repair Information Company, LLC.

DTC P2101 [MZI-3.7]

DTC P2101 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES

DIAGNOSTIC PROCEDURE

3.7].)



Are any DTCs present?

No

Troubleshooting completed.

DTC P2101

Throttle actuator circuit range/performance

DETECTION

CONDITION



A PCM malfunction flag is set indicating the motor circuit is open, and may
require cycling the key.

POSSIBLE CAUSE



Throttel actuator circuit are cross-wired

2008 Mazda CX-9 Grand Touring

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

Microsoft

Sunday, November 15, 2009 10:08:42 AM

Page 363

© 2005 Mitchell Repair Information Company, LLC.

DTC P2101 (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 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 FOR ALL OF
VEHICLE MODULE



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



Verify related pending code or stored
DTCs.



Is other DTCs present?

Yes

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

No

Go to the next step.

4

INSPECT THROTTLE BODY AND
PCM CONNECTOR FOR POOR
CONNECTION



Turn the ignition switch off.



Disconnect the throttle body and PCM
connector.



Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).



Are there any malfunction?

Yes

Repair or replace suspected part, then go to Step
6.

No

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.

Yes Go to the next step.

No

The system is correctly. 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 10:08:42 AM

Page 364

© 2005 Mitchell Repair Information Company, LLC.