Mazda CX-9 Grand Touring. Manual — part 327

IGKEY1

IGKEY1 fuse



Ignition switch



ENG. IGA fuse

IG KEY2

IGKEY2 fuse



Ignition switch



STA fuse



Starter relay



Starter



PCM

ENG.IGA

ENG.IGA fuse



Fuel pump relay



PCM



Diode



Fan relay (Single fan control module)



Cooling fan relay No.1 (Dual fan control module)



Cooling fan relay No.2 (Dual fan control module)

FUEL PUMP

FUEL PUMP fuse



Fuel pump relay



Fuel pump



PCM



INJ fuse



PCM



Fuel injector No.1



Fuel injector No.2



Fuel injector No.3



Fuel injector No.4



Fuel injector No.5



Fuel injector No.6

FAN1

FAN 1 fuse



Fan relay



Fan control module (Single fan control module)



Cooling fan relay No.1 (Dual fan control module)



Fan control module No.1 (Dual fan control module)

FAN 2 fuse

2008 Mazda CX-9 Grand Touring

2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:10:04 AM

Page 14

© 2005 Mitchell Repair Information Company, LLC.

FAN 2



Fan relay



Fan control module (Single fan control module)



Cooling fan relay No.2 (Dual fan control module)



Fan control module No.2 (Dual fan control module)

ENG+B

ENG+B fuse



Generator



CV solenoid valve



PCM

STA

STA fuse



Starter relay



PCM

ENG BAR

ENG BAR fuse



Front HO2S (RH)



Front HO2S (LH)



Rear HO2S (RH)



Rear HO2S (LH)



Oil control valve (RH)



Oil control valve (LH)



Mass air flow/intake air temperature sensor



Purge solenoid valve



Brake switch No.2

ENG BAR2

ENG BAR2 fuse



A/C relay



PCV valve heater fitting



PCV valve heater control

ENG INJ

ENG INJ fuse



PCM

INJ

INJ fuse



PCM



Fuel injector No.1



Fuel injector No.2



Fuel injector No.3



Fuel injector No.4



Fuel injector No.5

2008 Mazda CX-9 Grand Touring

2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:10:04 AM

Page 15

© 2005 Mitchell Repair Information Company, LLC.

NO.2 MIL ILLUMINATES [MZI-3.7]

NO.2 MIL ILLUMINATES (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES

DIAGNOSTIC PROCEDURE

NO.2 MIL ILLUMINATES (MZI-3.7) DIAGNOSTIC PROCEDURE



Fuel injector No.6

IG COIL

IG COIL fuse



Condenser



Ignition coil No.1



Ignition coil No.2



Ignition coil No.3



Ignition coil No.4



Ignition coil No.5



Ignition coil No.6

2

MIL ILLUMINATES

DESCRIPTION The MIL is illuminated incorrectly.

POSSIBLE

CAUSE



The PCM illuminates for emission-related concern (DTC is stored in PCM)



Instrument cluster malfunction

NOTE:



If the MIL blinks at steady rate, misfire condition could possibly
exist.

STEP

INSPECTION

RESULTS

ACTION

1

Connect the M-MDS to the DLC-2.
Turn the ignition switch to the ON
position (Engine off).
Retrieve any DTCs.
Are there any DTCs displayed?

Yes

DTC is displayed:



Go to appropriate the DTC inspection.

(See DTC TABLE [MZI-3.7] .)

No

No DTC is displayed:



Inspect instrument cluster operation.

(See INSTRUMENT CLUSTER

INSPECTION .)



Verify test results.



If normal, return to diagnostic index to service any additional symptoms.

2008 Mazda CX-9 Grand Touring

2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:10:04 AM

Page 16

© 2005 Mitchell Repair Information Company, LLC.

NO.3 WILL NOT CRANK [MZI-3.7]

NO.3 WILL NOT CRANK (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES

DIAGNOSTIC PROCEDURE

NO.3 WILL NOT CRANK (MZI-3.7) DIAGNOSTIC PROCEDURE

2

(See SYMPTOM DIAGNOSTIC INDEX [MZI-3.7].)



If malfunction remains, inspect related Service Bulletins and/or On-line Repair
Information and perform repair or diagnosis.



If vehicle is repaired, troubleshooting completed.



If vehicle is not repaired or additional diagnostic information is not available,
replace the PCM.

(See PCM INSPECTION [MZI-3.7] .)

3

WILL NOT CRANK

DESCRIPTION

The starter does not work.

POSSIBLE CAUSE



Open starter circuit between ignition switch and starter



TR switch malfunction



TR switch misadjustment



Low or dead battery



Charging system malfunction.



Starter malfunction



Seized/hydrolocked engine, drive plate



Immobilizer system and/or circuit malfunction



Immobilizer system operating properly. (Ignition key is not registered)



Advanced keyless entry system malfunction

STEP

INSPECTION

RESULTS

ACTION

1

Start the engine using the mechanical
ignition key.Does the engine start?

NOTE:



The following test should be
performed on the advanced
keyless entry system. If not
equipped, go to the next step.

Yes

Inspect advanced keyless entry system and
repair or replace according to inspection
result.
(See SYMPTOM
TROUBLESHOOTING CHART
[KEYLESS ENTRY SYSTEM] .)

No

Go to the next step.

2

Connect the M-MDS to the DLC-2.
Do the following conditions appear?



The engine is not completely

Yes

Both conditions appear:
Go to Step 4.

2008 Mazda CX-9 Grand Touring

2008 ENGINE Symptom Troubleshooting (MZI-3.7) - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:10:04 AM

Page 17

© 2005 Mitchell Repair Information Company, LLC.