1. Introduction
You might need to replace Pyro Fuse in some of following cases:
- Fuse blew by accidentally or car had accident
- Fuse is closer to end of its lifespan. You will see alert on screen "Battery Fuse requires replacement soon" with Code BMS_u031 or BMS_u032
1.2 Why car need Pyro Fuse?
It disconnect battery circuit to prevents short circuit or fire in the event of car crash, accident etc by blowing itself.
2. Cost to replace
Replacement cost can vary according to region/country/city, Type of Workshop in between 300-700 dollar. If you are looking for best affordable workshop. Please have a look in workshop locator or contact us. (Additional Info: You can find different Tesla Repair, Service Prices in your region/country/city. Please have a look on another guide. Link)
2.1 Labor Cost
2.1.1 Car with Battery 2.0
It will not take long to replace fuse for car with battery 2.0. Fuse is located below the High Voltage Battery. It will take around 0,54 hrs to replace & will cost labor around 115-150. Labor cost could vary depend on type of workshop, location etc.
2.1.2 Car with Battery 1.0.
It will take longer to replace fuse for car with battery 1.0. Fuse is located on top of the high voltage battery. It need to drop the whole battery pack to replace the Fuse. It takes a long time and it is expensive. Please contact us if you are looking for workshop.
2.2 Part Cost
Fuse will cost around 175.
Tesla Part Number: 1111313-00-F (Please make sure correct part number for your model. If need correct part number for your model. Please contact us or have a look in Tesla EPC Catalog.
Part Name: DISCONNECT,PYROTECHNIC,CUR POWERED,2000A
Part Details
| Model | Part Number |
| Y | 1064689-00-J |
| 3 | 1064689-00-J |
3. Buy Pyro Fuse
If you would like to buy Pyro Fuse. Please Contact Us or check out part in our part collection list.
4. Book an Online Appointment to Replace Fuse with Affordable Tesla Independent Workshop
If you would like to book an appointment for replacement. Please contact us or find an Workshop in our Workshop Locator and book an online appointment or contact us.
5. Fuse Cover Upgrade
Tesla original fuse cover corrode with time. After corrosion, it could enter water inside pack and will create internal isolation. In worst case, it could need to replace new battery pack, which could cost thousands of dollars/euro. We recommend to upgrade fuse cover as a preventative maintenance to avoid huge repair cost.
There are some aftermarket fuse cover available with different material (Stainless Steel, Anodized aluminum etc), which prevent from corrosion. Please check out more details in another guide (How to do, how much it cost, buy online fuse cover etc.) Link
6. How to Replace Tesla Pyro Fuse
Warning: It is recommend to replace Battery Fuse from Expert/Specialist, who have been trained to work on high voltage car. It could be dangerous.
Replacement process for Model 3 & Y is almost similar except few difference (Seat removal process). This process can vary depend on which model do you have and which battery version 1 or 2.
If you need and appointment. Please book an online appointment or contact us.
6.1 Steps to replace Pyro Fuse
Following steps are only for information purpose. Please use official Service Manual.
- Disconnect 12V battery (negative terminal first)
- Disconnect first responder loop
- Use proper PPE (Personal Protective Equipment)
- Check absence of high voltage
- Use fully insulated tool to replace pyro fuse
- Reconnect first responder loop
- Reconnect Low Voltage Battery
- Reconfigure the Car
- Car need to reconfigured depending on which Micro Controller Unit (MCU) is equipped in car.
- Coolant Air Purge
Battery 1.0
Procedure to replace, if your car has battery 1.0.
Battery 2.0
Procedure to replace, if you car has battery 2.0
Online Support/Help
If you need online Support/Help. Please contact us
7. FAQ
1. When to replace?
You might need to replace Pyro Fuse in some of following cases:
- Fuse blew by accidentally or car had accident
- Fuse is closer to end of its lifespan
2. Does car need programming after replacement
No.
3. Car not under Warranty?
We recommend you to do with Independent Workshop. You can find best affordable workshop near you in Workshop Locator.
If you are looking for Workshop which offers such services. Please Contact Us.
4. How to check if its good or blown up.
It could be checked with resistance.
Source: Tesla Service Manual
