how to tell if my Toyota Corolla E170 (2013-2019) has a blown fuse

Toyota Corolla E170 (2013-2019)

Error Codes

30 minutes - 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

495 words

Problem Statement

Learn how to check for a blown fuse in your 2013-2019 Toyota Corolla E170. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

30 minutes - 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shocks or shorts

Symptoms

•Electrical components (e.g., lights, radio, power windows) not functioning
•Warning lights illuminated on the dashboard
•Inconsistent operation of electronic features
•No power to specific circuits or components
•Burnt smell or visible damage near the fuse box

Diagnostic Steps

1
Locate the Fuse Box: Identify the location of the fuse box (under the dashboard on the driver's side and/or under the hood)
2
Visual Inspection: Open the fuse box and visually inspect each fuse for signs of damage such as a broken filament or discoloration
3
Use a Multimeter: Set a multimeter to the continuity setting and test each fuse for continuity to determine if it is functioning
4
Check the Fuse Diagram: Refer to the fuse diagram, often located on the cover of the fuse box, to identify which fuses correspond to the inoperative components
5
Replace Suspected Fuses: Replace any fuses that appear blown or test negative for continuity

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Multimeter
•Fuse puller
•Pliers

Parts Required

•Replacement fuses (matching the amperage of the blown fuses)

Related Faults

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Diagnostic Steps

1
Locate the Fuse Box: Identify the location of the fuse box (under the dashboard on the driver's side and/or under the hood)
2
Visual Inspection: Open the fuse box and visually inspect each fuse for signs of damage such as a broken filament or discoloration
3
Use a Multimeter: Set a multimeter to the continuity setting and test each fuse for continuity to determine if it is functioning
4
Check the Fuse Diagram: Refer to the fuse diagram, often located on the cover of the fuse box, to identify which fuses correspond to the inoperative components
5
Replace Suspected Fuses: Replace any fuses that appear blown or test negative for continuity

Solution

1. Preparation

Gather Tools: Ensure you have a multimeter, fuse puller or pliers, and replacement fuses.
Safety Precautions: Disconnect the vehicle's battery to prevent electrical shorts while working on the fuse box.

2. Access the Fuse Box

Open the Hood: Release the hood latch and secure the hood with the prop rod.
Remove Fuse Box Cover: Carefully remove the cover from the fuse box by unclipping it.

3. Inspect and Test Fuses

Visual Check: Look for any fuses that are burnt or damaged.
Multimeter Testing: Use the multimeter to check for continuity:
- Touch one probe to each end of the fuse terminal.
- A reading of zero or near zero indicates a blown fuse.

4. Replace Blown Fuses

Select Proper Fuse: Match the replacement fuse to the amperage specified on the fuse diagram.
Remove Blown Fuse: Use the fuse puller or pliers to remove the blown fuse carefully.
Install New Fuse: Insert the new fuse into the slot, ensuring it fits snugly.

5. Reassemble

Replace Fuse Box Cover: Snap the cover back onto the fuse box securely.
Reconnect Battery: Reconnect the vehicle's battery, ensuring terminal connections are tight.