how to fix the dashboard lights not working in Toyota Corolla E170 (2013-2019)

Toyota Corolla E170 (2013-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

550 words

Problem Statement

Learn how to diagnose and fix dashboard lights not working in Toyota Corolla E170 (2013-2019). Step-by-step guide with tools and safety tips.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent short circuits.
•Ensure the vehicle is turned off and cool before starting any work on the dashboard.

Symptoms

•Dashboard lights are completely off
•Instrument cluster is not illuminated
•Warning lights may not be visible
•Dimmer switch has no effect on dashboard brightness
•Other interior lights may still function

Diagnostic Steps

1
Check the vehicle's fuses related to the dashboard and instrument cluster.
2
Test the dimmer switch for functionality and proper connection.
3
Inspect the wiring harness and connections behind the dashboard for any visible damage or loose connections.
4
Use a multimeter to check for voltage at the dashboard lights.
5
Scan for any error codes using an OBD-II scanner to rule out electrical system faults.

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

•Fuse puller
•Screwdriver set
•Multimeter
•Electrical connector cleaner

Parts Required

•Replacement fuses (as needed)
•New dimmer switch (if faulty)
•Replacement bulbs for dashboard lights (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the vehicle's fuses related to the dashboard and instrument cluster.
2
Test the dimmer switch for functionality and proper connection.
3
Inspect the wiring harness and connections behind the dashboard for any visible damage or loose connections.
4
Use a multimeter to check for voltage at the dashboard lights.
5
Scan for any error codes using an OBD-II scanner to rule out electrical system faults.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety while working on electrical components.

2. Check and Replace Fuses

Tools Required: Fuse puller or needle-nose pliers.
Sub-steps:
1. Locate the fuse box (typically under the dashboard or in the engine bay).
2. Identify the fuse related to the dashboard lights (refer to the owner's manual for the exact fuse number).
3. Remove the fuse and inspect it for continuity. If blown, replace it with a new fuse of the same amperage.

3. Inspect and Repair the Dimmer Switch

Tools Required: Screwdriver set, multimeter.
Sub-steps:
1. Remove the panel around the dimmer switch using a screwdriver.
2. Disconnect the dimmer switch connector and inspect for corrosion or loose connections.
3. Use a multimeter to check for continuity in the dimmer switch. If faulty, replace with a new dimmer switch.

4. Inspect Wiring and Connections

Tools Required: Wiring diagram, multimeter, electrical connector cleaner.
Sub-steps:
1. Visually inspect the wiring harness behind the dashboard for any signs of wear, fraying, or damage.
2. Disconnect and clean the connectors with electrical cleaner to ensure good contact.
3. Reconnect and secure any loose wires and connectors.

5. Replace Dashboard Lights

Tools Required: Screwdriver set, replacement bulbs.
Sub-steps:
1. Remove the dashboard cover using appropriate screwdrivers.
2. Access the instrument cluster and remove it by unscrewing any retaining screws.
3. Replace any burnt-out bulbs with new ones (ensure they are the correct type).
4. Reassemble the instrument cluster and dashboard cover.