how to fix the high beam lights not working in my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

4 min read

637 words

Problem Statement

Learn how to diagnose and fix high beam lights not working in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•High beam indicator on the dashboard not illuminated
•No illumination when high beam switch is activated
•Low beam lights functioning normally
•Flickering or dim high beam lights (if intermittently working)
•Possible blown fuses affecting headlight circuit

Diagnostic Steps

1
Inspect the high beam bulbs for any signs of damage or burnout.
2
Check the high beam fuse in the fuse box for continuity or signs of being blown.
3
Test the high beam switch on the steering column for proper function.
4
Use a multimeter to check for voltage at the high beam socket when the switch is activated.
5
Inspect wiring and connectors leading to the high beam bulbs for corrosion or damage.

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

•Socket set
•Multimeter
•Replacement bulbs
•Fuse puller

Parts Required

•High beam bulbs
•Replacement fuse

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Diagnostic Steps

1
Inspect the high beam bulbs for any signs of damage or burnout.
2
Check the high beam fuse in the fuse box for continuity or signs of being blown.
3
Test the high beam switch on the steering column for proper function.
4
Use a multimeter to check for voltage at the high beam socket when the switch is activated.
5
Inspect wiring and connectors leading to the high beam bulbs for corrosion or damage.

Solution

1. Preparation

Gather tools: socket set, multimeter, replacement bulbs (if needed), and fuse puller.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace High Beam Bulbs

Step 1: Access the headlight assembly
- Open the hood and locate the headlight assembly.
Step 2: Remove the headlight bulb
- Twist the bulb socket counterclockwise and pull it out of the assembly.
Step 3: Replace the bulb
- Remove the old bulb and insert the new bulb without touching the glass.
- Reinsert the bulb socket into the assembly and twist it clockwise to secure.

3. Check and Replace Fuse

Step 1: Locate the fuse box
- Find the fuse box (usually under the dashboard or in the engine compartment).
Step 2: Identify the high beam fuse
- Refer to the owner's manual to locate the specific fuse for the high beams.
Step 3: Remove and inspect the fuse
- Use a fuse puller to remove the fuse. Check for continuity using a multimeter.
Step 4: Replace the fuse
- If blown, replace it with a new fuse of the same amperage rating (usually 10A or 15A for high beams).

4. Test the High Beam Switch

Step 1: Access the steering column
- Remove any necessary trim to access the high beam switch.
Step 2: Test the switch
- Disconnect the wiring harness and use a multimeter to check for continuity when the switch is activated.
Step 3: Replace the switch if faulty
- If there is no continuity, replace the high beam switch with a new one.

5. Inspect Wiring and Connectors

Step 1: Visual Inspection
- Check all wiring and connectors leading to the headlight assembly for any signs of wear, corrosion, or disconnection.
Step 2: Repair or replace damaged components
- Repair any frayed wires and ensure all connectors are secure and clean.