Fuse Diagrams and Realy: 2019 Toyota Mirai Fuses Guide

Fuse Diagrams and Realy: 2019 Toyota Mirai Fuses Guide

For the 2019 Toyota Mirai, fuse layouts and relays are very important for controlling the car’s electricity. Fuse diagrams show drivers exactly where the fuses are located and how much current they can handle. This helps them understand how the electrical system in their car is set up. You can usually find these diagrams in the owner’s guidebook or on the cover of the fuse box. They help you find blown fuses and replace them. On the other hand, relays are electromagnetic switches that help manage high-current lines so that different electrical parts work efficiently and safely. To find and fix electrical problems in a Toyota Mirai, drivers need to know how to read the switch diagrams and relays. This keeps the car running at its best and keeps drivers safe on the road.

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Checking and replacing fuses

If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary.

1. Turn the power switch off.
2. Open the fuse box cover.
   • Motor compartment
     Push the tab in and lift the lid off.
     
   • Driver’s side instrument panel
     Remove the lid.
     
3. Remove the fuse with the pull-out tool.
   Only type A fuses can be removed using the pullout tool.
   
4. Check if the fuse is blown.
   1. Normal fuse
   2. Blown fuse
      Replace the blown fuse with a new fuse of an appropriate amperage rating. The amperage rating can be found on the fuse box lid.

After a fuse is replaced

• If the lights do not turn on even after the fuse has been replaced, a bulb may need replacement.
• If the replaced fuse blows again, have the vehicle inspected by your Toyota dealer.

If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.

WARNING

• To prevent system breakdowns and vehicle fire
  Observe the following precautions. Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
  • Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse.
  • Always use a genuine Toyota fuse or equivalent. Never replace a fuse with a wire, even as a temporary fix.
  • Do not modify the fuses or fuse boxes.

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NOTICE

• Before replacing fuses
  Have the cause of the electrical overload determined and repaired by your Toyota dealer as soon as possible.

How to Replace the Fuse of the 2019 Toyota Mirai

Replacing a fuse in a 2019 Toyota Mirai is a relatively straightforward process. Here’s a step-by-step guide:

Materials:

1. The new fuse of the correct amperage.
2. Fuse puller or needle-nose pliers.

Instructions:

1. Locate the Fuse Box:

   • The fuse box in the Toyota Mirai is typically located in two places: one under the hood and one inside the cabin.

2. Turn Off the Vehicle:

   • Ensure that the vehicle’s ignition is turned off and the key is removed from the ignition switch to prevent electrical shocks.

3. Open the Fuse Box Cover:

   • If the fuse box is located under the hood, you may need to release the latch or press a tab to open the cover. If it’s inside the cabin, it’s usually located beneath the dashboard or in the driver’s side footwell area.

4. Identify the Blown Fuse:

   • Use the fuse diagram on the inside of the fuse box cover to locate the fuse corresponding to the malfunctioning component. A blown fuse typically has a broken wire inside or appears discoloured.

5. Remove the Blown Fuse:

   • Use the fuse puller tool to grasp the blown fuse firmly and pull it straight out of its slot. If you don’t have a fuse puller tool, you can carefully use needle-nose pliers instead.

6. Inspect the Replacement Fuse:

   • Before inserting the replacement fuse, double-check that it matches the amperage rating of the original fuse. Using a fuse with the wrong rating can cause electrical issues or damage to components.

7. Insert the Replacement Fuse:

   • Align the replacement fuse with the slot in the fuse box and push it firmly into place. Ensure it’s seated securely to maintain proper electrical contact.

8. Close the Fuse Box Cover:

   • Once the replacement fuse is installed, close the fuse box cover securely to protect the fuses and relays from dust, moisture, and debris.

9. Test the Component:

   • Turn on the vehicle’s ignition and test the component associated with the replaced fuse to verify that it’s functioning properly.

10. Dispose of the Old Fuse:

    • Dispose of the old fuse properly according to local regulations. Do not attempt to reuse a blown fuse, as it may compromise the electrical system’s safety.

Tips:

• Always use a fuse with the correct amperage rating to prevent electrical issues or damage to the vehicle.

FAQs

Useful Links

View Full PDF: 2019 Toyota Mirai Owner’s Manual | Auto User Guide

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