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.
Fail-Safe Control
Switches to fail-safe control when malfunction is detected in encoder signal that detects up/down speed and direction of door glass. Switches to fail-safe control when an error beyond the regulation value is detected between the fully closed position and the actual position of the glass.
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Malfunction |
Malfunction condition |
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Pulse sensor malfunction |
When only one side of pulse signal is being detected for more than the specified value. |
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Both pulse sensors malfunction |
When both pulse signals have not been detected for more than the specified value during glass open/close operation. |
|
Pulse direction malfunction |
When the pulse signal that is detected during glass open/close operation detects the opposite condition of power window motor operating direction. |
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Glass recognition position malfunction 1 |
When it detects the error between glass fully closed position in power window switch memory and actual fully closed position during glass open/close operation is more than the specified value. |
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Glass recognition position malfunction 2 |
When it detects pulse count more that the value of glass full stroke during glass open/close operation. |
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Malfunction of not yet updated closed position of glass |
When glass open/close operation is continuously performed without fully closing more that the specified value (approximately 10 strokes). |
It changes to condition before initialization and the following functions do not operate when switched to fail-safe control:
- Auto-up operation
- Anti-pinch function
- Retained power function
Perform initial operation to recover when switched to fail-safe mode. However, it switches back to fail-safe control when malfunction is found in power window switch or in motor.
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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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