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.
Inspection Procedure
- CHECK MANUAL UP/DOWN FUNCTION (DRIVER SIDE)
- Check that the door glass can be operated manually.
NG: OTHER PROBLEM
OK: Go to next step
- CHECK ILLUMINATION (POWER WINDOW MASTER SWITCH)
- Turn the ignition switch ON.
- Operate the driver switch of the master switch.
- Check the blinking pattern of the illumination.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- If pattern (1) is displayed, proceed to A.
- If pattern (2) or (3) is displayed, proceed to B.
- If the normal pattern is displayed, proceed to C.
B: Go to step 4
C: REPLACE POWER WINDOW REGULATOR MASTER SWITCH
A: Go to next step
- RESET POWER WINDOW REGULATOR MOTOR (DRIVER SIDE)
- Turn the ignition switch ON.
- Open the door glass.
- Fully pull up the power window switch until the door glass is fully closed.
- Continue to hold the switch 1 second or more even after the door glass is fully closed.
- Check that the AUTO UP/DOWN function operates completely.
OK: END
NG: Go to next step
- CHECK HARNESS (POWER WINDOW REGULATOR MASTER SWITCH - POWER WINDOW MOTOR)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Remove the driver side door trim board.
- Disconnect the D18 master switch connector.
- Disconnect the P10 power window motor connector.
- Check the continuity between the wire harness side connectors.
Standard resistance
RESISTANCE SPECIFICATIONTerminal No. Specified Condition D18-19 - P10-4 Below 1 Ω D18-5 - P10-5 Below 1 Ω D18-15 - P10-3 Below 1 Ω D18-12 - P10-6 Below 1 Ω D18-5 - Body ground No continuity D18-12 - Body ground No continuity D18-15 - Body ground No continuity D18-19 - Body ground No continuity NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: REPLACE POWER WINDOW REGULATOR MOTOR (DRIVER SIDE)
Use the Manual With the Right Hardware
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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.
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