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BE-60
BODY ELECTRICAL - POWER WINDOW CONTROL SYSTEM
POWER WINDOW CONTROL SYSTEM
BE19H-02
TROUBLESHOOTING
1 One touch power window does not move up and down. (Prepare normal master and regulator switch.)
After turning the ignition switch ON and power window master switch on the driver side UP or DOWN and
power window regulator switch on the passenger side UP or DOWN, check that the master and regulator
switch AUTO light blinks.
S Error is classified into the following 3 types according to the way of blinking.
UP or DOWN ON
OFF
1 Limit switch error 3 Limit switch/Pulse sensor
synchronize error
1.5 sec. Repeat
0.5 sec.
1.5 sec.
2 sec.
2 Pulse sensor error
1 sec. 2 sec.
Repeat
0.5 sec.
1 sec. Repeat
S When 30 seconds have elapsed since blinking begins, blinking stops.
(AUTO light remains ON)
S When turning the ignition key OFF, blinking stops.
blinks in the 1 way blinks in the 2 or 3 way No
Remove the master(regulator) switch. Master (regulator) switch defective
(Connector connection condition)
No
When the fully closed driver's door is
opened, does the voltage between termi-
nal 19 (2) and terminal 20 (3) of mas-
ter(regulator) switch change from 0 V to Disconnect the connecters of master (regulator)
10 - 14 V? switch and driver's (passenger's) power window
motor.
Yes
CONTINUED ON NEXT PAGE CONTINUED ON NEXT PAGE
2002 4RUNNER (RM887U)
Author : Date : 1528
BE-61
BODY ELECTRICAL - POWER WINDOW CONTROL SYSTEM
CONTINUED FROM PREVIOUS PAGE CONTINUED FROM PREVIOUS PAGE
Master(regulator) switch defective Does continuity exist between
connector terminals on the vehicle side?
Master(regulator) switch side Motor side
20 (3) terminal 4 terminal
21 (4) terminal 3 terminal
19 (2) terminal 5 terminal
No
Yes Wire harness defective (open)
Does continuity exist between 20, 21, termi-
nals and 19 on the master (regulator) switch
side or terminals 4, 3, and 5 on the motor side
and the body ground?
Yes
No Wire harness defective (short)
Connect the connector of power window motor.
Yes Connect the normal master (regulator) switch, do
AUTO UP and AUTO DOWN operations work?
No
Power window motor defective.
Master Switch Regulator Switch
6 5 4 3 2 1
21 20 19 18 17 16 15
12 11 10 9 8 7
I10181
2002 4RUNNER (RM887U)
Author : Date : 1529
BE-62
BODY ELECTRICAL - POWER WINDOW CONTROL SYSTEM
2 During AUTO UP operation, the power window moves down.
When operating AUTO UP with the Yes Disassemble the door and repair or
ignition switch ON, is there a cause replace the applicable part.
of increasing friction resistance at
the inverse position?
No
Remove the power window regulator assembly.
Does the window operate smoothly No Check and replace door glass run.
when moving the window up manually
after assembed?
Yes
Remove the power window motor from
the power window regulator assembly.
When operating the power window
regulator manually, does the regulator No Power window regulator defective.
move smoothly?
Are gears not damaged?
Yes
Does window motor rotate smoothly? No Power window motor defective.
Yes
Reset the limit switch. (See page BE-71 )
Yes
Does the window move normally? Normal (Check the function.)
No
Master (regulator) switch defective.
2002 4RUNNER (RM887U)
Author : Date : 1530
BE-63
BODY ELECTRICAL - POWER WINDOW CONTROL SYSTEM
3 The DOWN function does not work though foreign objects are caught in the power window glass.
Is the system in the jam protection function oper- No
ating? Normal (Perform function check)
S The AUTO UP operation works with
the ignition switch ON (One-touch operation).
Yes
No
Does the AUTO UP or AUTO DOWN operation work Proceed to chart 1.
with the ignition switch ON?
Yes
Is the power window within the jam
protection function operating area?
< Out of the operating area > Yes
area around the fully closed position
No
Reset the limit switch (See page BE-71 ).
Yes Normal
Does the power window operate normally? After performing operation check repeatedly,
conduct the function check.
No
Master (regulator) switch defective.
2002 4RUNNER (RM887U)
Author : Date : 1531
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