What is ACC on fuse box?
ACC (Accessory) — Allows operation of electrical accessories with the engine off. ON — The engine runs and all electrical accessories can be used. Release the ignition switch when the engine starts. The ignition switch returns automatically to the “ON” position.
What is the ACC terminal?
Adaptive cruise control (ACC) is an available cruise control system for road vehicles that automatically adjusts the vehicle speed to maintain a safe distance from vehicles ahead.
What is ACC 12V?
ACC (red), supplies +12V power to car audio and other accessories, only when the car’s ignition is switched on. Constant (yellow), also called BAT or Battery, provides permanent +12V power from battery. This allows the radio to retain settings (for example stored radio stations) when the ignition is switched off.
Where do I find the fuse box diagram?
However, sometimes the wire may look intact even in the blown fuse. Fuse box diagrams presented on our website will help you to identify the right type for a particular electrical device installed in your vehicle. Use our website search to find the fuse and relay schemes (layouts) designed for your vehicle and see the fuse block’s location.
How are cold circuits protected in a fuse box?
We’ll refer to cold circuits, or circuits that are only live when the engine is running as switched in this tutorial. Inside your fuse box, these constant and switched circuits tend to live right next to each other, with each circuit protected by an individual fuse. The fuse serves as a “test point” to determine which type of circuit it may be.
Where are the ACC circuits located in a car?
There are two ACC circuits originating in the underdash fuse box (formally the Under Dash Fuse/Relay Box, as there are other fuse boxes), just inside the driver’s door.
Where can I find an ACC power source?
The ideal ACC source would be easy to tap into, and also be in a place where one can easily run wires out to the rest of the car to power the gadget of interest. Unfortunately, the ACC circuits at first glance don’t suit. See the attached Service Express documents for more details, but essentially the way the ACCs work is:
The ideal ACC source would be easy to tap into, and also be in a place where one can easily run wires out to the rest of the car to power the gadget of interest. Unfortunately, the ACC circuits at first glance don’t suit. See the attached Service Express documents for more details, but essentially the way the ACCs work is:
Can you get switched power from a fuse?
This means one can’t just tap into the fuse locations with a fuse tap—if you do, you get “always-on” power, like any other fuse, not switched power.
There are two ACC circuits originating in the underdash fuse box (formally the Under Dash Fuse/Relay Box, as there are other fuse boxes), just inside the driver’s door.
Where does the ACC on signal come from?
After the fuse, the switching is as follows (see Service Express doc DIAG1—the ACC circuit diagram—attached): ACC ON signal comes from the Body Control module; energizes a nameless relay; and this relay then energizes the coils in relays L2 and L3 (also in the Under Dash Fuse/Relay Box), energizing the ACC circuits.