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.
Description and Operation: Function: Denormalization
Under conditions below, ECU turns to denormalized status. After denormalization, auto up and safety function shall not be operated. In order to make these function active again, ECU should go through the normalization process illustrated in chapter 4.4.
Denormalization conditions:
- Continuous 15 times reverses
- Power off during motor operation
- Driver side door opened and window glass is at the bottom (hard stop position) with IGN on, IGN Off => within Tsec (BH: 2sec, VI: 5sec), IGN On => Manual Down switch signal input 3 times within 5sec => De-normalization (If IGN off→on is not fulfilled within 2sec or manual down switch signal is not inputted within 5sec then repeat again this cycle)
Door and Glass Status IGN Status Input Time IGN Status Switch Input Status Switch Input Times Normalization Status Re-input time IGN Status Switch Input Driver side door opened, Window glass is bottom with IGN on (Hard stop) IGN Off DtlTsec BH: 2sec, VI: 5sec IGN On t ≤ 5sec IGN On Press and release Manual down switch 3times De-normalization
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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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