why do my Toyota Corolla E140 (2006-2013) tail lights keep blowing

Toyota Corolla E140 (2006-2013)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

491 words

Problem Statement

Learn how to diagnose and fix tail light issues in Toyota Corolla E140 (2006-2013). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow any hot components to cool before handling.

Symptoms

•Tail lights burn out repeatedly
•Fuses related to tail lights blow
•Dim or flickering tail lights before failure
•Possible dashboard warning lights illuminated
•Malfunctioning brake lights

Diagnostic Steps

1
Inspect the tail light bulbs for the correct wattage and type according to the owner’s manual.
2
Check the tail light fuse for any signs of damage or blowing.
3
Use a multimeter to measure voltage at the tail light connector.
4
Examine wiring and connectors for fraying, corrosion, or short circuits.
5
Inspect the tail light housing for moisture intrusion or damage.
6
Check the vehicle’s ground connections for corrosion or looseness.

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
•Socket set
•Screwdrivers (flathead and Phillips)
•Fuse puller

Parts Required

•Tail light bulbs (specific to model)
•Tail light fuse (if blown)
•Electrical connectors (if damaged)

Related Faults

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Diagnostic Steps

1
Inspect the tail light bulbs for the correct wattage and type according to the owner’s manual.
2
Check the tail light fuse for any signs of damage or blowing.
3
Use a multimeter to measure voltage at the tail light connector.
4
Examine wiring and connectors for fraying, corrosion, or short circuits.
5
Inspect the tail light housing for moisture intrusion or damage.
6
Check the vehicle’s ground connections for corrosion or looseness.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle's battery to ensure safety during the repair.
Wear safety goggles and gloves.

2. Replace Tail Light Bulbs

Remove the tail light assembly by unscrewing the retaining screws.
Disconnect the wiring harness from the tail light assembly.
Remove the old bulbs by twisting them counterclockwise.
Install new bulbs by twisting them clockwise into the socket.

3. Examine and Replace Fuses

Locate the fuse box and remove the cover.
Identify the tail light fuse using the diagram on the fuse box cover.
Pull out the fuse using a fuse puller or pliers and inspect it.
Replace with a new fuse of the same amperage if blown.

4. Inspect Wiring and Connectors

Visually inspect the wiring harness for any signs of damage or wear.
Use a multimeter to test for continuity in the wires leading to the tail lights.
Repair or replace damaged wiring as necessary.

5. Check Ground Connections

Locate the ground connection for the tail lights, typically found on the body near the tail light assembly.
Clean the ground connection point to remove any corrosion.
Ensure that the ground connection is tight and secure.