Mazda CX-9 Grand Touring. Manual - part 206

Fig. 2: Control System Wiring Diagram (2 Of 3) 
Courtesy of MAZDA MOTORS CORP. 

 

2008 Mazda CX-9 Grand Touring 

2008 ENGINE Control System (MZI-3.7) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:07:18 AM

Page 3 

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Fig. 3: Control System Wiring Diagram (3 Of 3) 
Courtesy of MAZDA MOTORS CORP. 

CONTROL SYSTEM LOCATION INDEX [MZI-3.7]

 

2008 Mazda CX-9 Grand Touring 

2008 ENGINE Control System (MZI-3.7) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:07:18 AM

Page 4 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 4: Identifying Control System Components Location 
Courtesy of MAZDA MOTORS CORP. 

CONTROL SYSTEM DIAGRAM [MZI-3.7]

 

2008 Mazda CX-9 Grand Touring 

2008 ENGINE Control System (MZI-3.7) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:07:18 AM

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© 2005 Mitchell Repair Information Company, LLC. 

Fig. 5: Control System Diagram 
Courtesy of MAZDA MOTORS CORP. 

PCM REMOVAL/INSTALLATION [MZI-3.7] 

1. Disconnect the negative battery cable.  

2. Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7] .) 

3. Disconnect connectors.  

4. Remove PCM and bracket as and assembly.  

5. Remove PCM from bracket.  

6. When replacing the PCM on the vehicles, perform the following. 



PCM parameter reset. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY 
ADDITION AND CLEARING [ADVANCED KEYLESS SYSTEM] .) (See IMMOBILIZER 
SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING 
[KEYLESS ENTRY SYSTEM] .)  

7. Install in the reverse order of removal. 

NOTE:



To replace the PCM, Setup the M-MDS and perform the PCM configuration. 
(See PCM CONFIGURATION [MZI-3.7].)  

NOTE:



Only 2 PCM connectors. 

 

2008 Mazda CX-9 Grand Touring 

2008 ENGINE Control System (MZI-3.7) - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:07:19 AM

Page 6 

© 2005 Mitchell Repair Information Company, LLC.