What are the disadvantages of adding OBD one-touch window lift?
3 Answers
obd one-touch window lift disadvantage is that when the first window of the car has reached the closed state within 5 seconds, the controller cannot determine the disconnected state and will continue to supply power to the window motor, causing the motor to operate under overload conditions for a long time. Introduction to automotive OBD: Automotive OBD refers to the On-Board Diagnostics system, and the OBD interface in a car is located below the left side of the steering wheel. Function of automotive OBD: The main function is to monitor the operating condition of the engine. During operation, the engine burns fuel and produces exhaust gases. The On-Board Diagnostics system continuously monitors whether the vehicle's exhaust emissions exceed the standard. Once the vehicle's exhaust emissions exceed the standard, the OBD warning light will immediately sound an alarm. The On-Board Diagnostics system can not only detect vehicle exhaust indicators but also monitor the engine, catalytic converter, particulate filter, oxygen sensor, emission control system, fuel system, etc., to identify potential safety hazards in the vehicle at any time and ensure the vehicle's safety performance.
I deeply regret installing that one-touch window control OBD module. Initially, it seemed convenient with just a button press to automatically open/close windows, but in reality, it caused numerous issues. First, it was unstable – windows would get stuck midway or fail to respond, requiring repeated fiddling to work, making me frantic at traffic lights. Worse, it drained my battery; leaving the car unused for a week left it dead, forcing me to call roadside assistance (costing over 100 yuan) when I couldn’t start my car for work. Compatibility was another headache—my new car’s smart system conflicted with the module, causing windows to open/close randomly, soaking the interior in rain and costing repair fees. The 4S店 refused warranty coverage for aftermarket electrical modifications, leaving me to pay extra repair costs. The hassle outweighs the convenience; manual window operation is far more reliable. Save your money—skip these flashy gadgets.
From a technical perspective, installing such modules carries significant risks. The OBD port was originally designed for diagnostic circuits; adding extra equipment increases the load, easily leading to short circuits or blown fuses. Compatibility varies widely, with mismatched protocols across different vehicle models causing window control functions to fail or become unstable. There's a high risk of data transmission interference, potentially affecting original systems like headlights or door locks. High power consumption means the module can drain the battery quickly if it doesn't enter sleep mode, leading to dead batteries during long-term parking. Unprofessional installation may cause loosening and poor contact. Overall, it reduces the reliability of the vehicle's electrical system and is less practical than factory features. It's recommended to directly upgrade the original vehicle settings instead.
