Should car isolation battery rotary switch disconnect the positive or negative pole? Does power failure affect the car?

The car isolation battery disconnect rotary swtich is a device that provides power to the starter when the car is started, and is also the source of power for some on-board electrical appliances. The normal operation of the isolation battery disconnect rotary swtich is crucial to the use of the car.

Should the car isolation battery disconnect rotary swtich power off the positive or negative? The correct way is to disconnect the negative pole beforehand, and then disconnect the positive pole. The positive pole should be installed first and the negative pole should be installed during installation.

The isolation battery disconnect rotary swtich is out of power due to a fault and it has no effect on the car, but it will affect the car. If the isolation battery disconnect rotary swtich is powered off, the starter of the car cannot start the engine without power supply, and the car cannot run normally. After the isolation battery disconnect rotary swtich is powered off, when the car stops and the generator stops working, the whole car will have no power. Then the anti-theft system of the vehicle will no longer work, and the alarms and lights will no longer work.

After the isolation battery disconnect rotary swtich is powered off, you cannot open the door by remote control, you can only use the mechanical key to open and close the door. The isolation battery disconnect rotary swtich power failure will not affect the car itself, just like the mobile phone is turned off without power, it will not be damaged, but it can no longer be used. Therefore, it is only the car owner who is troublesome when the isolation battery disconnect rotary swtich is powered off, and will not damage the car.

When we use the car, we must always pay attention to the condition of the isolation battery disconnect rotary swtich. If the isolation battery disconnect rotary swtich leaks, heats up, swells, or lacks electrolyte, perform maintenance or replacement in time.