why do my interior lights stay on in my Toyota Corolla E170 (2013-2019)

Toyota Corolla E170 (2013-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

531 words

Problem Statement

Learn how to diagnose and fix the issue of interior lights staying on in your 2013-2019 Toyota Corolla E170. Step-by-step guide with tools and tips.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems to prevent shock or short circuits.

Symptoms

•Interior lights do not turn off after closing doors
•Battery drain after the vehicle is parked for an extended period
•Possible warning lights on the dashboard related to electrical issues
•Difficulty starting the vehicle if left overnight

Diagnostic Steps

1
Inspect all doors to ensure they are fully closed, including the trunk and glove compartment.
2
Check the interior light switch settings to ensure it is not in the 'on' position.
3
Use an OBD-II scanner to check for any error codes related to the body control module.
4
Inspect the door switch for each door to ensure they are functioning correctly; test for continuity when the door is closed.
5
Check for any blown fuses in the interior lights circuit.
6
Examine wiring and connectors in the door hinges for any damage or shorts.

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

•OBD-II scanner
•Multimeter
•Socket set
•Flathead screwdriver
•Fuse puller

Parts Required

•Door switch (if faulty)
•Interior light bulbs (if burnt out)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect all doors to ensure they are fully closed, including the trunk and glove compartment.
2
Check the interior light switch settings to ensure it is not in the 'on' position.
3
Use an OBD-II scanner to check for any error codes related to the body control module.
4
Inspect the door switch for each door to ensure they are functioning correctly; test for continuity when the door is closed.
5
Check for any blown fuses in the interior lights circuit.
6
Examine wiring and connectors in the door hinges for any damage or shorts.

Solution

1. Preparation

Gather tools and parts.
Disconnect the battery to prevent electrical shock.
Ensure the vehicle is in park and on a flat surface.

2. Inspect and Replace Door Switches

Tools Required: Multimeter, socket set, flathead screwdriver.
Sub-steps:
1. Remove the door panel of each affected door using a flathead screwdriver and socket set.
2. Locate the door switch; it is usually mounted near the door latch.
3. Disconnect the wiring harness from the door switch.
4. Use a multimeter to test the switch for continuity. Replace if faulty.
5. Reconnect the new or tested switch and reassemble the door panel.

3. Check and Adjust Interior Light Settings

Tools Required: None.
Sub-steps:
1. Locate the interior light switch on the overhead console.
2. Ensure the switch is set to the "door" position instead of "on."
3. Test the lights by opening and closing the door to confirm they operate correctly.

4. Inspect Wiring and Fuses

Tools Required: Fuse puller, multimeter.
Sub-steps:
1. Locate the fuse box and remove the cover.
2. Identify the fuse associated with the interior lights (refer to the owner’s manual).
3. Inspect the fuse; replace it if blown.
4. Use a multimeter to check for continuity in the wiring leading to the interior lights.