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Mazda CX 7. Manual - part 352

SYMPTOM TROUBLESHOOTING [POWER WINDOW SYSTEMS (AUTO-OPEN/

CLOSE FUNCTION)]

09-03A–9

09-03A

VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW SWITCH AND POWER WINDOW
MOTOR) OR ELSEWHERE

• Is there continuity between the following

power window switch terminals (wiring
harness-side) and ground?
— Driver’s side (at main switch)

• 2C (sensor 1 signal)

• 2B (sensor power supply)

— Passenger’s side (at sub-switch)

• J (sensor 1 signal)

• B (sensor power supply)

Yes

Replace the wiring harness between the power window
switch and power window motor, then go to Step 12.

Go to the next step.

VERIFY WHETHER MALFUNCTION IS IN
POWER WINDOW SWITCH OR ELSEWHERE

• Turn the ignition switch to the ON position.

• Inspect the voltage at the following power

window switch terminals (sensor 2 signal):
— Driver’s side (at main switch): 2D

— Passenger’s side (at sub-switch) : H

• Does the voltage alternate between 0 V and

approx. 12 V when the door glass is moving
up and down?

Yes

Replace the power window switch (malfunction in power
window switch automatic mode control), then go to Step 11.

Go to the next step.

VERIFY SENSOR 2 OUTPUT SIGNAL

• Turn the ignition switch to the ON position.

• Inspect the voltage at power window motor

terminal B (sensor 2 signal).

• Does the voltage alternate between 0 V and

approx. 12 V when door glass is moving up
and down?

Yes

Go to the next step.

Replace the power window motor, then go to Step 12.

VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW SWITCH AND POWER WINDOW
MOTOR) OR ELSEWHERE

• Turn the ignition switch to the LOCK position.

• Disconnect the power window switch

connector and power window motor
connector.

• Is there continuity between the following

power window switch terminals and power
window motor terminals?

— Driver’s side (at main switch— power

window motor): 2D and B

— Passenger’s side (at sub-switch— power

window motor): H and B

Yes

Go to the next step.

Repair the wiring harness between the power window
switch and power window motor, then go to Step 12.

VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW SWITCH AND POWER WINDOW
MOTOR) OR ELSEWHERE

• Is there continuity between the following

power window switch terminals (sensor 2
signal) and ground?

— Driver’s side (at main switch): 2D

— Except driver’s side (at sub-switch) : H

Yes

Repair the wiring harness between the power window
switch and power window motor, then go to Step 12.

Go to the next step.

VERIFY WHETHER MALFUNCTION IS IN
WIRING HARNESS (BETWEEN POWER
WINDOW SWITCH AND POWER WINDOW
MOTOR) OR POWER WINDOW SWITCH

• Turn the ignition switch to the ON position.

• Measure the voltage at the following power

window switch terminals (sensor 2 signal):

— Driver’s side (at main switch): 2D

— Except driver’s sideat (at sub-switch): H

• Is the voltage approx. 12 V?

Yes

Repair the wiring harness between the power window
switch and front driver-side power window motor, then go to
the next step.

Replace the power window switch (open circuit or short to
power supply/ground in power window switch), then go to
the next step.

REINSPECT MALFUNCTION SYMPTOM
AFTER REPAIR

• Is malfunction no longer present?

Yes

• Troubleshooting completed.

• Explain repairs to the customer.

Reinspect malfunction symptoms, then repeat from Step 1 if
malfunction recurs.

STEP

INSPECTION

ACTION

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SYMPTOM TROUBLESHOOTING [POWER WINDOW SYSTEMS (AUTO-OPEN/

CLOSE FUNCTION)]

09-03A–10

End Of Sie

No.2 DOOR GLASS DOES NOT REVERSE, EVEN WHEN ENCOUNTERING A FOREIGN OBJECT IN IT IS
PATH[POWER WINDOW SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)]

id090360809800

Note

• Perform the following inspection for the power window system component parts of the windows where the

door glass does not reverse, even when encountering a foreign object in its path.

Diagnostic procedure

End Of Sie

Door glass does not reverse, even when encountering a foreign object in its path.

POSSIBLE

CAUSE

• Automatic window return range did not reset after battery disconnection: Step 2

STEP

INSPECTION

ACTION

VERIFY CUSTOMER COMPLAINT

• Did the customer complain that the door

glass did not reverse when near complete
closed position?

Yes

• The system is normal.

• Explain to the customer that automatic window return

power window system does not operate when near
complete closed position.

Go to the next step.

RESET REVERSE AREA STORED IN DOOR
GLASS MOTOR

• Perform the power window initialization

procedure.

• Did malfunction disappear?

Yes

• Troubleshooting completed.

• Explain to the customer that misadjustment of automatic

window return range was the problem.

Replace the power window switch.

• Verify auto-up/down operation and if the automatic

function does not operate, go to Step 1 of NO. 1 DOOR
GLASS DOES NOT MOVE UP AND DOWN IN
AUTOMATIC MODE.

• If the automatic function operates, replace the power

window switch.

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SYMPTOM TROUBLESHOOTING [POWER WINDOW SYSTEMS (AUTO-OPEN/

CLOSE FUNCTION)]

09-03A–11

09-03A

No.3 DOOR GLASS REVERSE EVEN WHEN ENCOUNTERING A FOREIGN OBJECT WHILE IT IS MOVING
UP IN AUTOMATIC MODE[POWER WINDOW SYSTEMS (AUTO-OPEN/CLOSE FUNCTION)]

id090360809900

Note

• Perform the following inspection for the power window system component parts of windows where the

door glass reverses even though the glass does not encounter a foreign object while it is moving up in
automatic mode.

Diagnostic procedure

Door glass reverses even though the glass does not encounter a foreign object while it is moving
up in automatic mode.

POSSIBLE

CAUSE

• Extreme change in the sliding resistance of the glass while the door glass is closing.

— Improper installation of the acrylic door visor.

— Power window motor malfunction

— Object caught between the glass run channel and the door glass.

— Insufficient tightening of the door glass to the carrier plate.

— Glass run channel malfunction.

— Glass guide related malfunction.

Note

• The auto-reverse pinch protection function is a mechanism that automatically reverses (opens) the

door glass while it is closing when the power window main switch detects the signal from the power
window motor indicating that an object is obstructing the door glass movement.

• The auto-reverse pinch protection function may operate if the sliding resistance of the door glass

increases causing the closing speed to decrease.

• If the door glass closing speed has changed, concentrate the inspection on the following locations:

(Slip occurrence)

— If the door glass is slipping forward, inspect the front side of the glass guide or glass run channel.

— If the door glass is slipping rearward, inspect the rear side of the glass guide or glass run channel.

STEP

INSPECTION

ACTION

INSPECT MALFUNCTION SYMPTOM

• Does the malfunction symptom occur only

under the following special conditions?:
— Driving over railroad tracks

— Driving on bumpy roads.

— Opening/closing the door.

Yes

The system is normal
(Explain to the customer that this does not indicate a
malfunction because the system is designed to reverse the
door glass while it is closing if it receives vibration when the
vehicle is crossing railroad tracks, driving on a bumpy road,
or when the door is opened/closed.)

Go to the next step.

INSPECT ACRYLIC DOOR VISOR

INSTALLATION CONDITION

• Is the acrylic door visor normal?

Yes

Go to the next step.

Install the side visor properly, then go to the next step.

INSPECT DOOR GLASS CLOSING

SPEED

• Affix tape to the rear edge of the door glass

as shown in the figure for placing marks (to
facilitate seeing the door glass movement)

• Start the engine and idle it (to ensure a

stabilized operational voltage).

• Does the door glass hesitate only once while

its closing?

Yes

Mark the point where the door glass closing speed changed,
then go to Step 5.

Go to the next step.

1J 1H

POWER WINDOW MAIN SWITCH

WIRING HARNESS-SIDE CONNECTOR

POWER WINDOW PASSENGER'S SUBSWITCH

WIRING HARNESS-SIDE CONNECTOR

POWER WINDOW MOTOR

WIRING HARNESS-SIDE CONNECTOR

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SYMPTOM TROUBLESHOOTING [POWER WINDOW SYSTEMS (AUTO-OPEN/

CLOSE FUNCTION)]

09-03A–12

End Of Sie

REINSPECT DOOR GLASS CLOSING

SPEED

• Does the door glass hesitate periodically (5-6

times) while it is closing?

Yes

Replace the power window motor, then go to Step 8 (See
09-12-7 POWER WINDOW MOTOR REMOVAL/
INSTALLATION.)

Go to Step 8.

INSPECT GLASS RUN CHANNEL AND

DOOR GLASS SLIDING SURFACE

• Is there an object caught between the glass

run channel and the door glass, or is there
roughness on the sliding surface (rubber
surface)?

Yes

Object is caught between glass run channel and

door glass:

• Remove the object.

Roughness on the sliding surface (rubber

surface):

• Replace the glass run channel.

After performing one of the above actions, reinspect.
If the malfunction is not corrected, go to Step 3.

Go to the next step.

INSPECT TIGHTENING OF DOOR

GLASS TO CARRIER PLATE

• Is it normal?

Yes

Go to the next step.

After tightening correctly, reinspect.
If the malfunction is not corrected, go to Step 3.

INSPECT CONDITION OF GLASS RUN

CHANNEL AND DOOR GLASS

• Is it normal?

Yes

Go to the next step.

Assemble the glass run channel and door glass securely,
and reinspect.
If the malfunction is not corrected, go to Step 3.

INSPECT DOOR GLASS CLOSING

SPEED

• Does the door glass hesitate at any location?

Yes

Repeat the inspection from Step 3.

Troubleshooting completed.

STEP

INSPECTION

ACTION

Speed change position

If door glass slips rearward slightly

Affx tape to rear edge

If door glass slips forward slightly

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