why do my rear lights not work on my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

550 words

Problem Statement

Learn how to diagnose and fix rear lights not working on Toyota Corolla E170 (2013-2019). Step-by-step guide with diagnostic procedures 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 any electrical components to avoid shock.

Symptoms

•Rear lights do not illuminate when headlights are on
•No response when the brake pedal is pressed
•Check engine or warning lights may be illuminated on the dashboard
•Fuses related to rear lighting may be blown
•Potentially dim or flickering lights when activated

Diagnostic Steps

1
Inspect the rear light bulbs for any signs of damage or burnout.
2
Check the fuse box for any blown fuses related to the rear lights.
3
Use an OBD-II scanner to check for any error codes that might indicate electrical issues.
4
Test the rear light sockets for proper voltage using a multimeter.
5
Inspect the wiring harness for any visible damage or corrosion.
6
Verify the operation of the light switch and associated wiring.

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
•OBD-II scanner
•Fuse pullers

Parts Required

•Replacement bulbs
•Replacement fuses

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Diagnostic Steps

1
Inspect the rear light bulbs for any signs of damage or burnout.
2
Check the fuse box for any blown fuses related to the rear lights.
3
Use an OBD-II scanner to check for any error codes that might indicate electrical issues.
4
Test the rear light sockets for proper voltage using a multimeter.
5
Inspect the wiring harness for any visible damage or corrosion.
6
Verify the operation of the light switch and associated wiring.

Solution

1. Preparation

Gather tools: multimeter, socket set, OBD-II scanner, and replacement bulbs/fuses as needed.
Ensure the vehicle is parked on a level surface and the ignition is off.
Disconnect the negative battery terminal to prevent electrical shock.

2. Replace Burnt-Out Bulbs

Remove the rear light assembly by unscrewing any retaining screws and pulling the assembly away from the vehicle.
Twist the bulb socket counterclockwise to remove it from the assembly.
Replace any burnt-out bulbs with new bulbs of the same type (check the owner’s manual for specifications).
Reassemble the light assembly and secure it with screws.

3. Check and Replace Blown Fuses

Locate the fuse box, usually found under the dashboard or in the engine compartment.
Identify the fuse for the rear lights (refer to the fuse diagram on the cover of the fuse box).
Pull the fuse out using fuse pullers and inspect it. If the wire inside is broken, replace it with a new fuse of the same amperage.
Reinstall the fuse and close the fuse box.

4. Repair Wiring Issues

If wiring damage is found, splice in new wire sections as necessary to replace any frayed or broken wires.
Use heat shrink tubing to protect the spliced areas.
Reconnect any disconnected plugs and ensure all connections are secure.

5. Test the System

Reconnect the negative battery terminal.
Turn on the vehicle and test the rear lights by activating the headlights and pressing the brake pedal.