Buick LaCrosse Battery Drain Fault
1 Answers
There are generally three main reasons for battery drain in the Buick LaCrosse: 1: Battery depletion caused by electrical switches not being turned off when parking. 2: Self-discharge and battery depletion due to short circuits or oxidation shedding of battery plates. 3: Current leakage caused by grounding of automotive electrical components and circuits such as electrical devices, wiring harnesses, sensors, controllers, and actuators. Dark current (named so because it is called DarkCurrent in English, hence the direct translation as dark current) refers to the current that continues to flow when the ignition switch is in the OFF position (car in non-operational state). It is precisely due to the existence of these dark currents, along with the natural discharge of the battery, that prolonged parking leads to insufficient battery capacity, resulting in the car's inability to start.