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What does 'Escape 4WD overheating temporarily invalid' mean?

1 Answers

ZoeyAnn

07/30/25 9:55am

When the car displays '4WD overheating temporarily invalid', it indicates an overheating alarm in the electronic coupler of the four-wheel drive transmission. Structure of the electronic coupler: The electronic coupler can form switching circuits, logic circuits, and high-voltage voltage stabilizing circuits, making it an important component in automotive circuits. Couplers mainly include directional couplers, power dividers, and various microwave branch devices, consisting of two parts: a free light source and a light receiver. Fault handling methods: As a four-wheel drive vehicle, when the coupler in the transmission system triggers an alarm, it is promptly reflected on the car's dashboard to alert the driver. Timely disconnection of the electronic coupler can prevent severe faults in the car's circuitry and even avoid potential self-ignition incidents.

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