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.
Power Window Control System: Inspection
- Inspect one-touch power window system current of circuit (Using an ammeter)
:
- Disconnect the connector from the master switch.
- Connect the positive (+) lead from the ammeter to terminal 1 on the wire harness side connector and the negative (-) lead to negative (-) terminal of the battery.
- Connect the positive (+) lead from the battery to terminal 2 on the wire harness side connector.
- As the window goes down, check that the current flow is approximately 7 amps.
- Check that the current increases up to approximately 14.5 amps or more when the window stops going down.
If the operation is not as specified, replace the master switch.
NOTE: The PTC opens about 4 - 90 seconds after the window stops going down, so that check must be made before the PTC operates. - Inspect rear door power window switch continuity :
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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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