Mazda CX-7 2007 Workshop Manual page 1407

SYMPTOM TROUBLESHOOTING [POWER WINDOW SYSTEMS (AUTO-OPEN/
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)]
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.
Door glass reverses even though the glass does not encounter a foreign object while it is moving
3
up in automatic mode.
• 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
POSSIBLE
• The auto-reverse pinch protection function is a mechanism that automatically reverses (opens) the
CAUSE
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.
POWER WINDOW MAIN SWITCH
WIRING HARNESS-SIDE CONNECTOR
1M 1K 1I 1G 1E 1C
1N 1L 1J 1H 1F 1D
2D 2C 2B 2A
Diagnostic procedure
STEP
1 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.
2 INSPECT ACRYLIC DOOR VISOR
INSTALLATION CONDITION
• Is the acrylic door visor normal?
3 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?
CLOSE FUNCTION)]
POWER WINDOW PASSENGER'S SUBSWITCH
WIRING HARNESS-SIDE CONNECTOR
1A
1B
K I
L J
INSPECTION
WIRING HARNESS-SIDE CONNECTOR
C A
*
*
H F D B
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.)
No Go to the next step.
Yes Go to the next step.
No Install the side visor properly, then go to the next step.
Yes Mark the point where the door glass closing speed changed,
then go to Step 5.
No Go to the next step.
id090360809900
POWER WINDOW MOTOR
E C A
F D B
ACTION
09-03A–11
09-03A