Mazda CX-9 Grand Touring. Manual - part 211

 

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Mazda CX-9 Grand Touring. Manual - part 211

 

 

REMOVAL 

1. Disconnect the negative battery cable.  

2. Remove the following part for easier access. 

1. Remove the Catalytic Converter (WU-TWC) (LH).(See EXHAUST SYSTEM 

REMOVAL/INSTALLATION [MZI-3.7] .)  

3. Remove in the order indicated in the table. 

Fig. 21: Identifying CKP Sensor, Cover With Insulator & Torque Specifications 
Courtesy of MAZDA MOTORS CORP. 

4. Install in the reverse order of removal.  

CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [MZI-3.7] 

VISUAL INSPECTION 

1. Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR 

REMOVAL/INSTALLATION [MZI-3.7].)  

2. Verify that there are no metal shavings on the CKP sensor. 

Courtesy of MAZDA MOTORS CORP. 

NOTE:

Before performing the following inspection, make sure to follow the 
procedure as indicated in the troubleshooting flowchart. (See HOW TO 
USE THIS MANUAL .)  

 

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 23 

© 2005 Mitchell Repair Information Company, LLC. 

3. Install the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR 

REMOVAL/INSTALLATION [MZI-3.7].)  

RESISTANCE INSPECTION 

1. Remove the CKP sensor connector.  

2. Measure the resistance between the CKP sensor terminals. 

If not within the specification, replace the CKP sensor. (See CRANKSHAFT POSITION (CKP) 
SENSOR REMOVAL/INSTALLATION [MZI-3.7]
.)  

If the monitor item status/specification (reference) is not within the specification, even though the 
resistance is within the specification, perform the "Circuit Open/Short Inspection".  

CKP sensor resistance  

250-1,000 ohms  

CIRCUIT OPEN/SHORT INSPECTION 

Fig. 22: Identifying CKP Sensor And PCM Harness Side Connector 
Courtesy of MAZDA MOTORS CORP. 

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) 

 

2008 Mazda CX-9 Grand Touring 

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

  

Microsoft 

 

Sunday, November 15, 2009 10:07:19 AM

Page 24 

© 2005 Mitchell Repair Information Company, LLC. 

2. Inspect the following harness for open or short circuit. (Continuity check)  

Open circuit 

CKP sensor terminal A and PCM terminal 2P  

CKP sensor terminal B and PCM terminal 2T  

Short circuit 

CKP sensor terminal A and power supply  

CKP sensor terminal A and body ground  

CKP sensor terminal B and power supply  

CKP sensor terminal B and body ground  

CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [MZI-3.7] 

1. Disconnect the negative battery cable.  

2. Remove the battery.  

3. Remove the following part for easier access. 

Remove the resonance chamber and air cleaner assy. (See INTAKE-AIR SYSTEM 
REMOVAL/INSTALLATION [MZI-3.7]
 .)  

4. Disconnect the CMP sensor connector  

5. Remove the CMP sensor. 

6. Install in the reverse order of removal. 

Fig. 23: Identifying CMP Sensor Connector & Torque Specifications

NOTE:

Lubricate the CMP O-ring seal with clean engine oil. 

 

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 25 

© 2005 Mitchell Repair Information Company, LLC. 

Courtesy of MAZDA MOTORS CORP.

CAMSHAFT POSITION (CMP) SENSOR INSPECTION [MZI-3.7] 

VISUAL INSPECTION 

1. Remove the CMP sensor. (See CAMSHAFT POSITION (CMP) SENSOR 

REMOVAL/INSTALLATION [MZI-3.7].)  

2. Verify that there are no metal shavings on the CMP sensor.  

3. Install the CMP sensor. (See CAMSHAFT POSITION (CMP) SENSOR 

REMOVAL/INSTALLATION [MZI-3.7].)  

RESISTANCE INSPECTION 

1. Remove the CMP sensor connector.  

2. Measure the resistance between the CMP sensor terminals. 

If not within the specification, replace the CMP sensor. (See CAMSHAFT POSITION (CMP) 
SENSOR REMOVAL/INSTALLATION [MZI-3.7]
.)  

If the monitor item status/specification (reference) is not within the specification, even though the 
resistance is within the specification, perform the "Circuit Open/Short Inspection".  

CMP sensor resistance  

800-1,320 ohms  

CIRCUIT OPEN/SHORT INSPECTION 

NOTE:

Before performing the following inspection, make sure to follow the 
procedure as indicated in the troubleshooting flowchart. (See HOW TO 
USE THIS MANUAL .)  

 

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 26 

© 2005 Mitchell Repair Information Company, LLC. 

 

 

 

 

 

 

 

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