Lexus RX300 (MCU15). Service manual — part 137
BE0HG–22
–
BODY ELECTRICAL
POWER WINDOW CONTROL SYSTEM
BE–95
LEXUS RX300 (RM785E)
ADJUSTMENT
HOW TO RESET POWER WINDOW MOTOR (RESET LIMIT SWITCH AND PULSE SWITCH)
If the jam protection is not functioned properly, perform the following procedure.
HINT:
If is necessary to reset the power window motor (in initial position for the limit switch) when separating the
window regulator from the power window motor or operating the window regulator with the door glass not
installed.
(a)
Remove the power window motor. (See page BO–15, BO–24)
HINT:
Place the matchmarks on the power window motor and window regulator gear.
(b)
Connect the power window motor an power window switch to wire harness of the vehicle.
(c)
Turn the ignition switch ON and operate the power window switch to idle the power window motor in
UP side direction for more than 6 rotations or less than 10 rotates (4 seconds or more).
(d)
Assemble the power window motor and regulator.
HINT:
S
Install the motor when the regulator arm is below the middle point.
S
Align the matchmarks on the power window motor and window regulator gear when install the power
window motor.
(e)
Assemble the power window regulator and door glass.
HINT:
Never rotate the motor to the down direction until the completion of the window glass installation.
(f)
Connect power window switch to wire harness and turn the ignition switch ON.
(g)
Repeat UP and DOWN operation several times manually.
(h)
Check if AUTO UP → AUTO DOWN operates in automatic operation.
HINT:
S
Take care that the jam protection function does not operate just after resetting.
S
Reset the regulator again when performing the reverse operating after closing the window fully by
AUTO UP operation.
(i)
Check the power window function.
BE0HQ–13
I19167
Door Lock Assembly
D Door Lock Motor
D Door Unlock Detection Switch
D Door Key Lock and Unlock Switch
Body ECU
Ignition Switch
Key Unlock Warning Switch
Power Window Master Switch
D Door Lock Control Switch
Rear LH Door ECU
Door Lock Control Switch
Rear RH Door ECU
Back Door Key Lock
and Unlock Switch
Back Door Lock Motor
Back Door Unlock Detection Switch
Door Lock Assembly
D Door Lock Motor
D Door Unlock
LHD:
RHD:
Ignition Switch
Key Unlock Warning Switch
Body ECU
BE–96
–
BODY ELECTRICAL
POWER DOOR LOCK CONTROL SYSTEM
LEXUS RX300 (RM785E)
POWER DOOR LOCK CONTROL SYSTEM
LOCATION
BE1YJ–01
I19144
UNLOCK
LOCK
I07296
UNLOCK
LOCK
I19145
UNLOCK
LOCK
Door Lock Cable
–
BODY ELECTRICAL
POWER DOOR LOCK CONTROL SYSTEM
BE–97
LEXUS RX300 (RM785E)
INSPECTION
1.
INSPECT DRIVER’S DOOR KEY LOCK AND UNLOCK
SWITCH CONTINUITY
LHD:
Switch position
Tester connection
Specified condition
LOCK
2 – 8
Continuity
OFF
–
No continuity
UNLOCK
1 – 8
Continuity
RHD:
Switch position
Tester connection
Specified condition
LOCK
3 – 6
Continuity
OFF
–
No continuity
UNLOCK
4 – 6
Continuity
If continuity is not as specified, replace the switch.
2.
INSPECT DRIVER’S DOOR KEY LOCK AND UNLOCK
SWITCH CIRCUIT (See page DI–610)
3.
INSPECT BACK DOOR KEY LOCK AND UNLOCK
SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
LOCK
1 – 2
Continuity
OFF
–
No continuity
UNLOCK
1 – 3
Continuity
If continuity is not as specified, replace the switch.
If continuity is as specified, inspect the switch circuit.
4.
INSPECT BACK DOOR KEY LOCK AND UNLOCK
SWITCH CIRCUIT (See page DI–592)
5.
INSPECT FRONT DOOR UNLOCK DETECTION
SWITCH CONTINUITY
Driver’s door (LHD)/Passenger’s door (RHD):
Switch position
Tester connection
Specified condition
OFF (Door Lock set to
LOCK)
–
No continuity
ON (Door Lock set to
UNLOCK)
7 – 8
Continuity
I19146
UNLOCK
LOCK
Door Lock Cable
I07311
UNLOCK
BE–98
–
BODY ELECTRICAL
POWER DOOR LOCK CONTROL SYSTEM
LEXUS RX300 (RM785E)
Passenger ’s door (LHD)/Driver’s door (LHD):
Switch position
Tester connection
Specified condition
OFF (Door Lock set to
LOCK)
–
No continuity
ON (Door Lock set to
UNLOCK)
6 – 7
Continuity
If continuity is not as specified, replace the door lock assembly.
6.
INSPECT FRONT DOOR UNLOCK DETECTION
SWITCH CIRCUIT (See page DI–608)
7.
INSPECT REAR DOOR UNLOCK DETECTION
SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
OFF (Door Lock set to
LOCK)
–
No continuity
ON (Door Lock set to
UNLOCK)
3 – 4
Continuity
If continuity is not as specified, replace the door lock assembly.
8.
INSPECT REAR DOOR UNLOCK DETECTION
SWITCH CIRCUIT (See page DI–653)
9.
INSPECT BACK DOOR UNLOCK DETECTION
SWITCH CONTINUITY
Switch position
Tester connection
Specified condition
OFF (Door Lock set to
LOCK)
–
No continuity
ON (Door Lock set to
UNLOCK)
1 – 4
Continuity
If continuity is not as specified, replace the door lock assembly.
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