my Toyota Corolla E210 (2019-2024) engine light keeps coming on, what should I check?

Solution

1. Preparation

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

2. Replace Faulty Components

• If error codes indicate a faulty part:
  • Locate the faulty component as per the error code.
  • Remove the faulty part using the appropriate socket set.
  • Install the new component and ensure it is properly seated and connected.

3. Inspect and Clean

• Air Filter:

  • Remove the air intake cover using a screwdriver.
  • Take out the air filter and inspect for dirt or damage.
  • Clean or replace the air filter as needed.

• Spark Plugs:

  • Remove the ignition coil(s) to access the spark plugs, using a socket set.
  • Inspect the spark plugs for wear; replace if necessary.
  • Reinstall the ignition coils after confirming proper fit.

4. Check Fluid Levels

• Check coolant, transmission fluid, and brake fluid levels.
• Top off any low fluids with the manufacturer-recommended fluids.

5. Reconnect Battery and Clear Codes

• Reconnect the battery terminals.
• Use the OBD-II scanner to clear the trouble codes and reset the check engine light.