Mazda CX-9 Grand Touring. Manual — part 162

POWER LIFTGATE (PLG) TOUCH SENSOR REMOVAL/INSTALLATION

1. Disconnect the negative battery cable.

2. Remove the following parts:

motor

3H

Half latch
switch

Latch position
switch

After opening the liftgate,
operate the closure motor
with the liftgate half-
closed

1.0 or less -->

B+



Liftgate latch
and lock
actuator



Latch
position
switch



Closure
motor

3N

(1)

Unlock
signal

Passenger seat
side lock link
switch

Passenger seat side door is
locked. Check the
continuity with earth

No Continuity

Passenger seat side
lock link switch

Passenger seat side door is
unlocked. Check the
continuity with earth

Continuity

3O

Liftgate
outer handle
switch
signal

Liftgate outer
handle switch

When operating the
liftgate outer handle
(When the liftgate outer
handle switch is ON)

B+

Liftgate outer handle
switch

When not operating the
liftgate outer handle
(When the liftgate outer
handle switch is OFF)

1.0 or less

3Q

PLG front
switch
signal
(Input)

PLG front
switch

PLG front switch: Switch
is at ON

B+

PLG front switch

PLG front switch: Switch
is at OFF

1.0 or less

3R

Power
supply to
PLG
switches

PLG switch

PLG front switch: Open or
close switch is at ON

1.0 or less

PLG control module

PLG front switch: Open or
close switch is at OFF

B+

3U

CAN_L

-

Because this terminal is for
communication, good/no good judgment
by terminal voltage is not possible

-

3V

CAN_H

-

Because this terminal is for
communication, good/no good judgment
by terminal voltage is not possible

-

(1)

When checking the operation of UNLOCK signal, position the rear door lock knobs of both sides at
LOCK.

2008 Mazda CX-9 Grand Touring

2008 BODY & ACCESSORIES Doors and Liftgate - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:45:23 AM

Page 19

© 2005 Mitchell Repair Information Company, LLC.

1. Liftgate upper trim (See LIFTGATE UPPER TRIM REMOVAL/INSTALLATION .)

2. PLG arm (See POWER LIFTGATE (PLG) DRIVE UNIT REMOVAL/INSTALLATION.)

3. Liftgate side trim (See LIFTGATE SIDE TRIM REMOVAL/INSTALLATION .)

4. Liftgate lower trim (See LIFTGATE LOWER TRIM REMOVAL/INSTALLATION .)

3. Disconnect the PLG touch sensor connector.

4. Remove the screws.

5. Remove the PLG touch sensor.

6. Install in the reverse order of removal.

Fig. 19: Identifying PLG Touch Sensor, Connector & Screw
Courtesy of MAZDA MOTORS CORP.

POWER LIFTGATE (PLG) TOUCH SENSOR INSPECTION

1. Verify that the resistance is as indicated in the table.



If no as indicated in the table, replace the PLG touch sensor.

Fig. 20: PLG Touch Sensor Resistance Chart
Courtesy of MAZDA MOTORS CORP.

2008 Mazda CX-9 Grand Touring

2008 BODY & ACCESSORIES Doors and Liftgate - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:45:23 AM

Page 20

© 2005 Mitchell Repair Information Company, LLC.

Fig. 21: PLG Touch Sensor - Circuit Diagram
Courtesy of MAZDA MOTORS CORP.

POWER LIFTGATE (PLG) FRONT SWITCH REMOVAL/INSTALLATION

1. Disconnect the negative battery cable.

2. Remove the dashboard under cover. (Driver's side) (See DASHBOARD UNDER COVER

REMOVAL/INSTALLATION .)

3. Remove the hood release lever. (See HOOD LATCH AND RELEASE LEVER

REMOVAL/INSTALLATION .)

4. Remove in the order indicated in the table.

Fig. 22: Identifying PLG Front Switch & Connector
Courtesy of MAZDA MOTORS CORP.

5. Install in the reverse order of removal.

POWER LIFTGATE (PLG) FRONT SWITCH INSPECTION

1. Verify that the continuity between the PLG front switch terminals is as indicated in the table.



If not as indicated in the table, replace the PLG front switch.

2008 Mazda CX-9 Grand Touring

2008 BODY & ACCESSORIES Doors and Liftgate - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:45:23 AM

Page 21

© 2005 Mitchell Repair Information Company, LLC.

Fig. 23: PLG Front Switch Continuity Chart
Courtesy of MAZDA MOTORS CORP.

Fig. 24: PLG Front Switch - Circuit Diagram
Courtesy of MAZDA MOTORS CORP.

POWER LIFTGATE (PLG) REAR SWITCH REMOVAL/INSTALLATION

1. Disconnect the negative battery cable.

2. Remove the liftgate recess. (See LIFTGATE LOWER TRIM REMOVAL/INSTALLATION .)

3. Disconnect the connector from the PLG rear switch.

4. Remove the PLG rear switch from the recess.

5. Install in the reverse order of removal.

Fig. 25: Identifying PLG Rear Switch & Connector
Courtesy of MAZDA MOTORS CORP.

POWER LIFTGATE (PLG) REAR SWITCH INSPECTION

2008 Mazda CX-9 Grand Touring

2008 BODY & ACCESSORIES Doors and Liftgate - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:45:23 AM

Page 22

© 2005 Mitchell Repair Information Company, LLC.