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.