Replacing a blown fuse: 2020 ACURA NSX Fuse Diagram Guide
When it comes to precision, speed, and new ideas in car engineering, the 2020 Acura NSX is a shining example. Bringing together cutting-edge technology with the classic appeal of a sports car icon, it represents the very best in-car craftsmanship. The fuse box is an important part that is often ignored but is necessary for it to work smoothly. It has clean lines and an aerodynamic design. The fuse box is the brain of an electrical system. It makes sure that important parts work properly and protects against electrical accidents.
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Fuses
Fuse Locations
If any electrical devices are not working, set the power mode to VEHICLE OFF, and check to see if any applicable fuse is blown.
Hood Fuse Box
There are two fuse boxes under the hood. Fuse locations are shown on the fuse box cover. Locate the fuse in question by the fuse number and box cover number.
Fuse box A
Located near the radiator. Push the tabs to open the box.
Circuit-protected and fuse rating
|
Circuit Protected |
Amps |
|
8 |
Left Headlight Low Beam |
10 A |
|
|
|
|
9 |
Right Headlight High Beam |
10 A |
|
|
|
|
10 |
Right Headlight Low Beam |
10 A |
|
|
|
|
11 |
IGPS Fan |
7.5 A |
|
|
|
|
12 |
FI Main |
15 A |
|
|
|
|
13 |
FI Sub |
20 A |
|
|
|
|
14 |
Back Up |
7.5 A |
|
− |
(50 A) |
|
15 |
SBW ECU |
7.5 A |
|
F/B Main 1 |
60 A |
|
16 |
DBW1 |
15 A |
|
− |
(60 A) |
|
17 |
IG Coil |
15 A |
|
− |
(50 A) |
|
18 |
DBW2 |
15 A |
|
|
Motor |
30 A |
|
21 |
Front Washer |
20 A |
|
|
− |
(40 A) |
|
22 |
ISC |
15 A |
|
|
|
Heater Motor 2 |
30 A |
|
23 |
− |
− |
|
|
|
Heater Motor 1 |
30 A |
|
24 |
ACC/IG2 Main |
10 A |
|
|
|
− |
(40 A) |
|
25 |
Daytime Running Lights |
10 A |
|
|
|
|
|
|
|
26 |
Horn |
10 A |
|
|
|
|
|
|
27 |
Interior Lights |
7.5 A |
|
|
|
|
|
|
28 |
IGP2 |
15 A |
|
|
|
|
|
|
29 |
Audio |
10 A |
|
|
4 |
Parking Light |
10 A |
|
|
|
|
|
|
5 |
IGPS PCS |
7.5 A |
|
|
|
|
|
|
6 |
Left Headlight High Beam |
10 A |
|
|
|
|
|
|
7 |
VFP2 |
7.5 A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fuse box B
Located near the 12-volt battery. Remove the maintenance cover, then push the tabs to open the box.
Circuit-protected and fuse rating
Circuit Protected Amps
|
1 |
SBW |
60 A |
|
− |
− |
|
|
F/B Main 2 |
60 A |
|
|
Wiper |
30 A |
|
|
Passenger Power Window |
30 A |
|
|
IG Main 1 |
30 A |
|
|
Driver Power Window |
30 A |
|
|
ESB |
40 A |
|
|
2 |
IG Main 2 |
30 A |
|
3 |
IMA Motor |
20 A |
|
4 |
BMS |
7.5 A |
|
5 |
Stop |
7.5 A |
|
6 |
Turbo W/G |
20 A |
|
7 |
Hazard |
7.5 A |
|
8 |
A/C W/P |
10 A |
|
9 |
− |
− |
|
10 |
AEV |
7.5 A |
|
11 |
FI-ECU Backup |
7.5 A |
|
12 |
− |
− |
|
13 |
− |
− |
|
14 |
− |
− |
|
15 |
− |
− |
|
16 |
− |
− |
|
17 |
IMA Motor |
10 A |
Driver’s Side Interior Fuse Box
Located under the dashboard.
Fuse locations are shown on the label on the under panel.
Locate the fuse in question by the fuse number and label number.
Circuit-protected and fuse rating
Passenger’s Side Interior Fuse Box
Located inside the passenger’s side under cover. Remove the clips using a Phillips-head screwdriver, then open the undercover.
Fuse locations are shown on the label on the undercover.
Locate the fuse in question by the fuse number and label number.
Circuit-protected and fuse rating
Rear Side Interior Fuse Box
Located near the rear center speaker. Fuse locations are shown on the hood fuse box A cover.
Have an authorized Acura NSX dealer inspect and replace the fuse.
Circuit-protected and fuse rating
|
|
Circuit Protected |
Amps |
|
1 |
HCA-2 |
20 A |
|
2 |
− |
− |
|
3 |
− |
− |
|
4 |
− |
− |
|
5 |
HCA-1 |
20 A |
|
6 |
DI-INJ |
20 A |
|
7 |
− |
− |
|
8 |
TCU |
30 A |
Inspecting and Changing Fuses
- Set the power mode to VEHICLE OFF. Turn headlights and all accessories off.
- Remove the fuse box cover.
- Check the large fuse in the hood.
- If the fuse is blown, use a Phillips-head screwdriver to remove the screw and replace it with a new one.
- Inspect the small fuses in the hood and the vehicle interior.
- If there is a burned-out fuse, remove it with the fuse puller and replace it with a new one.
Inspecting and Changing Fuses
NOTICE
Replacing a fuse with one that has a higher rating greatly increases the chances of damaging the electrical system.
Replace the fuse with a spare fuse of the same specified amperage.
Use the charts to locate the fuse in question and confirm the specified amperage on the fuse label.
There is a fuse puller on the back of the hood fuse box A cover.
Emergency Towing
Call a professional towing service if you need to tow your vehicle.
Flatbed equipment
The operator loads your vehicle on the back of a truck.
This is the only way you can safely transport your vehicle. Any other towing method will damage the vehicle’s drive system.
Emergency Towing
NOTICE
Trying to lift or tow your vehicle by the bumpers will cause serious damage. The bumpers are not designed to support the vehicle’s weight.
NOTICE
Improper towing such as towing behind a motorhome or other motor vehicle can damage the transmission.
Never tow your vehicle with a rope or chain.
It is very dangerous since ropes or chains may shift from side to side or break. You will also damage the vehicle’s drive system.
How a Fuse be Replaced 2020 Acura NSX
The process of replacing a fuse is pretty easy, but it’s important to be careful so that nothing bad happens. This is a general outline of how to change a fuse:
- Turn off the power
- Before you do anything else, make sure the power is off in the space where the switch is. Most of the time, this can be done by flipping the circuit breaker in your electrical box that goes with it.
- Find the Fuse Box
- Find the fuse box in your home. It’s usually in the garage, the basement, the utility room, or close to the electricity meter.
- Find the Blown Fuse
- Look for the blown fuse in the fuse box. The fuse that needs to be changed will have a break in the metal strip or, if it’s a glass fuse, will look cloudy.
- Pick out the right replacement fuse
- When you buy a new fuse, make sure it has the same voltage and amperage number as the old one. Usually, this information is written on the metal caps that end the fuse.
- Take out the blown fuse
- Carefully hold the blown fuse in your hands and pull it straight out of its hole using fuse pullers or a small pair of pliers. Be careful not to damage the fuse box.
- Place the new fuse in place
- Put the new fuse into the plug that isn’t being used. Make sure it fits well and is sitting down right.
- Restore Power
- Once the new fuse is firmly in place, you can turn the power back on to the circuit by flipping the circuit breaker in your electrical panel that goes with it.
- Test the Circuit
- Once the power is back on, make sure everything is working right by testing the circuit. If the fuse blows again right away or soon after turning the power back on, there may be a bigger problem that needs to be fixed by an expert.
- Get Rid of the Blown Fuse
- Get rid of the blown fuse safely. Most of the time, you can throw it away with your regular trash.
Remember that it’s always best to get help from a trained electrician if you’re not sure how to do something or are having trouble. If you don’t do it right, electrical work can be dangerous, so safety should always come first.
FAQs
A fuse is an electrical safety device that keeps electrical circuits from getting too much power. It is common for the 2020 Acura NSX switch box to be in the engine bay or under the dashboard.
A break in the metal strip inside the fuse is often a sign that the fuse has blown. Also, if a certain electrical part stops working, it could mean that a fuse has blown.
Yes, it is pretty easy to change a blown switch in a 2020 Acura NSX. The owner’s instructions or fuse box cover will tell you where the fuse that needs to be replaced is and how much amperage it can handle.
A pair of needle-nose pliers or a fuse puller tool is usually all you need. Both of these tools may come in the fuse box. But it’s also a good idea to have extra fuses with the right amperage level.
No matter what model or trim level of the 2020 Acura NSX you have, the fuse box may be in a different place.
Yes, always make sure the car’s engine is off before working with fuses to avoid getting shocked or damaging the car’s electrical system.
Yes, using a fuse with a different amperage rating than what is suggested for a certain circuit could damage the car’s electrical system or even start a fire.
Checking the fuses in your 2020 Acura NSX is a good idea every so often, especially if you notice any electrical problems or if certain parts stop working.
You can find extra fuses for the 2020 Acura NSX in the fuse box or in the toolbox that comes with the car.
Aftermarket fuses may work with the 2020 Acura NSX, but it’s best to use original OEM fuses to make sure they fit and work right.
If you can’t find a blown fuse or if the problem still happens after replacing the fuse, you should get help from a trained technician or an Acura dealership to figure out what’s wrong and fix it.
As of right now, there are no known recalls or widespread problems with the 2020 Acura NSX’s fuses. It is, however, always a good idea to know about any recalls or new information from the maker.
Both very hot and very cold temps can affect how well the fuses in the 2020 Acura NSX work. When the weather is really bad, it’s best to leave the car parked somewhere safe.
As a general rule, you can find fuse diagrams for the 2020 Acura NSX in the owner’s guidebook or on the inside of the fuse box cover. The position and purpose of each fuse are shown in these diagrams.
People who own a 2020 Acura NSX can share fuse diagrams and other technical knowledge on many websites and forums. But make sure that any information you get online is correct and trustworthy at all times.
Useful Links
View Full PDF: ACURA NSX 2020 User Manual| Auto User Guide