why does my Volvo XC60 Second Generation (2018-2024) check engine light keep turning on

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to avoid any electrical issues.

2. Addressing Fault Codes

• Sub-step 1: Use the OBD-II scanner to retrieve specific fault codes.
• Sub-step 2: Research the fault codes for further analysis of potential issues (e.g., P0420 for catalytic converter efficiency).
• Sub-step 3: Clear the error codes and see if they return after a test drive.

3. Inspect and Replace Components

• Sub-step 1: If the gas cap is damaged or not sealing properly, replace it with a genuine Volvo part.
• Sub-step 2: If the air filter is dirty, remove the air intake cover and replace the filter with a new one.
• Sub-step 3: For ignition issues, remove spark plugs and inspect for wear; replace if necessary. Check ignition coils for proper function.
• Sub-step 4: If low fuel pressure is detected, inspect the fuel pump and fuel filter, replacing if needed.

4. Exhaust System Inspection

• Sub-step 1: Visually inspect the exhaust system for leaks or damage.
• Sub-step 2: Use a smoke test to identify any leaks if necessary.
• Sub-step 3: If a catalytic converter issue is suspected, consider replacing it according to manufacturer specifications.