how to reset the check engine light on my Toyota Corolla E170 (2013-2019)

Toyota Corolla E170 (2013-2019)

Error Codes

30 minutes - 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

445 words

Problem Statement

Learn how to reset the check engine light on your 2013-2019 Toyota Corolla E170. Step-by-step guide with diagnostic procedures and tips.

Affected Component

Electrical

Estimated Time

30 minutes - 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid short circuits.

Symptoms

•Check engine light illuminated
•Possible stored error codes
•Engine may run normally despite light being on
•Potential loss of vehicle performance (if related to a fault)
•The light may stay on after diagnostic trouble codes (DTCs) are cleared

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify underlying issues.
2
Address any identified issues by performing necessary repairs or maintenance.
3
Clear the error codes using the OBD-II scanner to reset the check engine light.
4
Alternatively, disconnect the battery to reset the vehicle’s computer.
5
Reconnect the battery after a brief period and check if the CEL is still illuminated.

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
•Socket set for battery terminal
•Safety gloves

Parts Required

•None specifically for resetting; repairs may require parts based on diagnostic findings.

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify underlying issues.
2
Address any identified issues by performing necessary repairs or maintenance.
3
Clear the error codes using the OBD-II scanner to reset the check engine light.
4
Alternatively, disconnect the battery to reset the vehicle’s computer.
5
Reconnect the battery after a brief period and check if the CEL is still illuminated.

Solution

1. Preparation

Gather tools: OBD-II scanner, socket set for battery terminal, safety gloves.
Ensure the vehicle is parked on a level surface and the engine is off.
Wear safety gloves and goggles for protection.

2. Using an OBD-II Scanner

Locate the OBD-II port under the dashboard on the driver's side.
Plug the OBD-II scanner into the port.
Turn the ignition key to the "ON" position without starting the engine.
Follow the scanner's instructions to read and record any error codes.
Address any issues indicated by the codes before resetting.
Select the option to clear/reset the codes on the scanner and confirm.

3. Disconnecting the Battery (Alternative Method)

Open the hood and secure it with the prop rod.
Use a socket set to loosen and remove the negative (-) battery terminal.
Wait for approximately 15-30 minutes to allow the vehicle’s computer to reset.
Reattach the negative battery terminal and tighten it securely.
Start the engine and check if the check engine light has turned off.