Mazda CX-9 Grand Touring. Manual - part 572

Fig. 24: Power Seat Switch (Passenger Seat) - Circuit Diagram 
Courtesy of MAZDA MOTORS CORP. 

POSITION MEMORY CONTROL MODULE REMOVAL/INSTALLATION 

1. Operate the power seat switch and move the seat cushion forward and upward.  

2. Turn the ignition switch to the LOCK position.  

3. Disconnect the negative battery cable and wait 1 min or more.  

4. Remove the driver-side front seat. (See FRONT SEAT REMOVAL/INSTALLATION.)  

5. Remove in the order indicated in the table.  

6. Install in the reverse order of removal. 

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Seats - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:40:01 AM

Page 18 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 25: Identifying Position Memory Control Module And Connector 
Courtesy of MAZDA MOTORS CORP. 

POSITION MEMORY CONTROL MODULE INSPECTION 

1. Measure the voltage at each terminal is as indicated in the Terminal Voltage Tables. 



If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under 
"Inspection item(s)" and related wiring harnesses.  

2. If the system does not work properly even though the inspection items or related wiring harnesses do not 

have any malfunction, replace the position memory control module.  

TERMINAL VOLTAGE TABLE (REFERENCE) 

Fig. 26: Identifying Position Memory Control Module Connector Terminal 
Courtesy of MAZDA MOTORS CORP. 

VOLTAGE SPECIFICATION 

Terminal

Signal name

Connected to

Measured condition

Voltage 

(V)

Inspection item(s)

1A

Keyless entry 
signal

BCM

Because this terminal is for 

communication, good/no good 

judgment by terminal voltage is not 

possible.



BCM  



Related wiring 
harness  

1D

Vehicle speed 
input

Instrument 
cluster

Measure the waveform 
while driving using the 
oscilloscope.

High 
output: B+



Instrument 
cluster  



Related wiring 
harness  

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 19 

© 2005 Mitchell Repair Information Company, LLC. 

1F

Door 
open/closed

Door switch 
(Driver side)

Driver-side door open: Inspect for 
continuity to ground. B+



Door switch 
(Driver side)  



Related wiring 
harness  

Driver-side door closed: Inspect for 
continuity to ground. 1.0 or less

1G

IG1

Instrument 
cluster 10 A 
fuse

Ignition switch is at ON 
position

B+



Instrument 
cluster 10 A 
fuse  



Related wiring 
harness  

Ignition switch is at LOCK 
or ACC position

1.0 or less

1H

Signal GND

Body ground

Under any condition

1.0 or less

Related wiring 
harness

1J

Power GND

Body ground

Under any condition

1.0 or less

Related wiring 
harness

1M

Power supply

ROOM 15 A 
fuse

Under any condition

B+



ROOM 15 A 
fuse  



Related wiring 
harness  

1O

Power supply

P/SEAT 40 A 
fuse

Under any condition

B+



P/SEAT 40 A 
fuse  



Related wiring 
harness  

2A

Slide switch 
input (forward)

Power seat 
switch

Press the slide switch to 
forward

1.0 or less



Power seat 
switch  



Related wiring 
harness  

Other

5.0

2B

Slide switch 
input 
(backward)

Power seat 
switch

Press the slide switch to 
backward

1.0 or less



Power seat 
switch  



Related wiring 
harness  

Other

5.0

2C

Front tilt switch 
input (up)

Power seat 
switch

Press the front tilt switch to 
up

1.0 or less



Power seat 
switch  



Related wiring 
harness  

Other

5.0

2D

Front tilt switch 
input (down)

Power seat 
switch

Press the front tilt switch to 
down

1.0 or less



Power seat 
switch  



Related wiring 
harness  

Other

5.0

2E

Rear tilt switch 
input (up)

Power seat 
switch

Press the rear tilt switch to 
up

1.0 or less



Power seat 
switch  



Related wiring 
harness  

Other

5.0

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Seats - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:40:01 AM

Page 20 

© 2005 Mitchell Repair Information Company, LLC. 

2F

Rear tilt switch 
input (down)

Power seat 
switch

Press the rear tilt switch to 
down

1.0 or less



Power seat 
switch  



Related wiring 
harness  

Other

5.0

2G

Recliner switch 
input (forward)

Power seat 
switch

Press the recliner switch to 
forward

1.0 or less



Power seat 
switch  



Related wiring 
harness  

Other

5.0

2H

Recliner switch 
input 
(backward)

Power seat 
switch

Press the recliner switch to 
backward

1.0 or less



Power seat 
switch  



Related wiring 
harness  

Other

5.0

2I

Signal GND 
input

Power seat 
switch

Under any condition

1.0 or less



Power seat 
switch  



Related wiring 
harness  

2J

Signal GND 
input

Position 
memory 
switch

Under any condition

1.0 or less



Position 
memory 
switch  



Related wiring 
harness  

2K

Set switch input

Position 
memory 
switch

Press the set switch

1.0 or less



Position 
memory 
switch  



Related wiring 
harness  

Other

5.0

2L

Memory switch 
1 input

Position 
memory 
switch

Press the memory switch 1 1.0 or less



Position 
memory 
switch  



Related wiring 
harness  

Other

5.0

2M

Memory switch 
2 input

Position 
memory 
switch

Press the memory switch 2 1.0 or less



Position 
memory 
switch  



Related wiring 
harness  

Other

5.0

2N

Memory switch 
3 input

Position 
memory 
switch

Press the memory switch 3 1.0 or less



Position 
memory 
switch  



Related wiring 
harness  

Other

5.0

 

2008 Mazda CX-9 Grand Touring 

2008 BODY & ACCESSORIES Seats - Mazda CX-9

  

Microsoft 

 

Sunday, November 15, 2009 10:40:01 AM

Page 21 

© 2005 Mitchell Repair Information Company, LLC.