Mazda CX-9 Grand Touring. Manual - part 570

Fig. 13: Identifying Lumber Support Lever & Pin 
Courtesy of MAZDA MOTORS CORP. 

SEAT WEIGHT SENSOR INSTALLATION NOTE 

1. Install the seat weight sensor to the slide adjusters and temporarily tighten the four nuts.  

2. Tighten nuts A (both right and left) at the same time to the specified tightening torque.  

3. Tighten nuts B (both right and left) at the same time to the specified tightening torque.  

4. Install the seat under bracket to the seat weight sensor and temporarily tighten the four nuts.  

5. Tighten nuts C (both right and left) at the same time to the specified tightening torque.  

6. Tighten nuts D (both right and left) at the same time to the specified tightening torque. 

Fig. 14: Identifying Seat Under Bracket, Seat Weight Sensor & Torque Specifications 
Courtesy of MAZDA MOTORS CORP.

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Seats - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:40:01 AM

Page 10 

© 2005 Mitchell Repair Information Company, LLC. 

FRONT TILT MOTOR INSPECTION

1. Disconnect the front tilt motor connector.  

2. Apply battery positive voltage to the front tilt motor terminals and inspect the front tilt motor operation 



If not as specified, replace the slide adjuster.  

MOTOR OPERATION 

3. Connect the front tilt motor connector.  

4. Measure the front tilt motor terminal A waveform during motor operation using the oscilloscope. 

VOLTAGE SPECIFICATION 



If not as specified, replace the slide adjuster. 

Fig. 15: Front Tilt Motor - Circuit Diagram 
Courtesy of MAZDA MOTORS CORP. 

REAR TILT MOTOR INSPECTION 

1. Disconnect the rear tilt motor connector.  

2. Apply battery positive voltage to the rear tilt motor terminals and inspect the rear tilt motor operation 



If not as specified, replace the slide adjuster.  

MOTOR OPERATION 

Motor operation

Connection

B+ GND

Up

E

D

Down

D

E

Condition Voltage (V)

High output 4.8 or more

Low output 1.0 or less

Motor operation

Connection

B+ GND

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Seats - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:40:01 AM

Page 11 

© 2005 Mitchell Repair Information Company, LLC. 

3. Connect the rear tilt motor connector.  

4. Measure the rear tilt motor terminal A waveform during motor operation using the oscilloscope. 

VOLTAGE SPECIFICATION 



If not as specified, replace the slide adjuster. 

Fig. 16: Rear Tilt Motor - Circuit Diagram 
Courtesy of MAZDA MOTORS CORP. 

SLIDE MOTOR INSPECTION 

1. Disconnect the slid motor connector.  

2. Apply battery positive voltage to the slide motor terminals and inspect the slide motor operation 



If not as specified, replace the slide adjuster.  

MOTOR OPERATION 

3. Connect the slide motor connector.  

4. Measure the slide motor terminal 1C waveform during motor operation using the oscilloscope. 

VOLTAGE SPECIFICATION 

Up

E

D

Down

D

E

Condition Voltage (V)

High output 4.8 or more

Low output 1.0 or less

Motor operation

Connection

B+ GND

Forward

2B

2A

Backward

2A

2B

Condition Voltage (V)

High output 4.8 or more

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Seats - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:40:01 AM

Page 12 

© 2005 Mitchell Repair Information Company, LLC. 



If not as specified, replace the slide adjuster. 

Fig. 17: Slide Motor - Circuit Diagram 
Courtesy of MAZDA MOTORS CORP. 

RECLINER MOTOR INSPECTION 

1. Disconnect the recliner motor connector.  

2. Apply battery positive voltage to the recliner motor terminals and inspect the recliner motor operation 



If not as specified, replace the slide adjuster.  

MOTOR OPERATION 

3. Connect the recliner motor connector.  

4. Measure the recliner motor terminal C waveform during motor operation using the oscilloscope. 

VOLTAGE SPECIFICATION 



If not as specified, replace the slide adjuster. 

Low output 1.0 or less

Motor operation

Connection

B+ GND

Forward

E

A

Backward

A

E

Condition Voltage (V)

High output 4.8 or more

Low output 1.0 or less

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Seats - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:40:01 AM

Page 13 

© 2005 Mitchell Repair Information Company, LLC.