Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2004LX 470 V8-4.7L (2UZ-FE)REPAIR AND DIAGNOSISWINDOWS AND GLASSWINDOWSTESTING AND INSPECTIONPROGRAMMING AND RELEARNINGINITIALIZATION
2004 Lexus LX 470 V8-4.7L (2UZ-FE)
Initialization
2004 Lexus LX 470 V8-4.7L (2UZ-FE)SECTION Initialization
HOW TO RESET POWER WINDOW MOTOR (RESET SWITCH AND PULSE SWITCH)
If the jam protection is not functioned properly, perform the following procedure.
HINT: It 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.
HINT: Place the matchmarks on the power window motor and window regulator gear.
b. Connect the power window motor and 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:
- Install the motor when the regulator arm is below the middle point.
- 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:
- Take care that the jam protection function does not operate just after resetting.
- Reset the regulator again when performing the reverse operating after closing the window fully by AUTO UP operation.
i. Check the power window function.
If the jam protection is not functioned properly, perform the following procedure.
HINT: It 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.
HINT: Place the matchmarks on the power window motor and window regulator gear.
b. Connect the power window motor and 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:
- Install the motor when the regulator arm is below the middle point.
- 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:
- Take care that the jam protection function does not operate just after resetting.
- Reset the regulator again when performing the reverse operating after closing the window fully by AUTO UP operation.
i. Check the power window function.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.