What are the ACC and constant power in the Envision?

[Patel]

Detailed introduction is as follows: 1. Constant power: Constant power refers to the positive power supply connected from the positive terminal of the battery, which is not controlled by any switch or relay. This means that as long as the battery has power and the fuse is not blown, there will be power. 2. ACC: The ACC state refers to the switch state of the ignition key. Extended information: 1. Gear introduction: Generally, car keys have 4 positions, one is "OFF", one is "ACC", another is "ON", and the last one is the start position. However, most Volkswagen models (such as Hongqi, Audi, etc.) have only 3 positions, meaning there is no "ACC". (1) The OFF position means "off". (2) The ACC position means "power can be supplied to some electrical devices in the car without starting the engine". (3) The ON position means "power can be supplied to all electrical devices in the car". (4) The start position is an automatically resetting switch; after starting the engine, it automatically returns to the "ON" position.