Lexus RX300 (MCU15). Manual — part 351
I03214
P8
Power Window Motor RH (*1)
P7
Power Window Motor LH (*2)
R
Passenger Door ECU
G
UP
DN
PLS
LMT
SGND
1
15
20
8
12
LG–B
LG
LG–R
Power Window
Motor
Pulse Sensor
Limit SW
2 (*1)
1 (*2)
3
4
5
F17
F17
F17
F17
F17
1 (*1)
2 (*2)
*1: LHD
*2: RHD
DI–636
–
DIAGNOSTICS
PASSENGER DOOR CONTROL SYSTEM
LEXUS RX300 (RM785E)
Power window motor circuit
WIRING DIAGRAM
DI2F4–09
–
DIAGNOSTICS
PASSENGER DOOR CONTROL SYSTEM
DI–637
LEXUS RX300 (RM785E)
INSPECTION PROCEDURE
HINT:
In case of using the hand–held tester, start the inspection from step 1 and in case of not using the hand–held
tester, start from step 2.
1
Check power window motor using hand–held tester.
PREPARATION:
Connect the hand–held tester to the DLC 3.
CHECK:
Check that the power window motor can operate in an ACTIVE TEST.
OK
Proceed to next circuit inspection shown on
problem symptoms table (See page DI–624).
NG
2
Check power window motor (See page BE–84).
NG
Replace the power window motor.
OK
3
Check wireharness and connector between power window motor and passenger
door ECU.
NG
Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI–624).
I03214
P8
Power Window Motor RH (*1)
P7
Power Window Motor LH (*2)
R
Passenger Door ECU
G
UP
DN
PLS
LMT
SGND
1
15
20
8
12
LG–B
LG
LG–R
Power Window
Motor
Pulse Sensor
Limit SW
2 (*1)
1 (*2)
3
4
5
F17
F17
F17
F17
F17
1 (*1)
2 (*2)
*1: LHD
*2: RHD
DI–638
–
DIAGNOSTICS
PASSENGER DOOR CONTROL SYSTEM
LEXUS RX300 (RM785E)
Jam protection limit switch circuit
CIRCUIT DESCRIPTION
Jam protection limit switch is built–in the power window motor. This switch functions to turn ”OFF” before the
top dead center, and ECU reads this ”OFF” signal resulting in closing the window fully.
WIRING DIAGRAM
DI2F5–06
–
DIAGNOSTICS
PASSENGER DOOR CONTROL SYSTEM
DI–639
LEXUS RX300 (RM785E)
INSPECTION PROCEDURE
HINT:
In case of using the hand–held tester, start the inspection from step 1 and in case of not using the hand–held
tester, start from step 2.
1
Check jam protection limit switch using hand–held tester.
PREPARATION:
Connect the hand–held tester to the DLC 3.
CHECK:
Check the jam protection limit switch using DATA LIST.
OK
Proceed to next circuit inspection shown on
problem symptoms table (See page DI–624).
NG
2
Check jam protection limit switch (See page BE–84).
NG
Replace the power window motor.
OK
3
Check wireharness and connector between jam protection limit switch and pas-
senger door ECU.
NG
Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table
(See page DI–624).
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