How to Fix a Misfunction Indicator Lamp
When your vehicle’s OBD II system detects an issue, a malfunction indicator lamp (MIL) illuminates on your dashboard. This light could indicate serious trouble with either your engine or emission control system that must be addressed immediately.
At times, the MIL may not indicate a major issue; it could simply be due to an improperly secured gas cap or poor fuel quality.
Check the Battery
The malfunction indicator lamp, also referred to as the check engine light or MIL, is an alert that something is amiss with your vehicle. It could indicate anything from a minor issue to an urgent one so it’s essential that you address the problem promptly.
The initial step in fixing a malfunctioning indicator lamp is to make sure you have an operational battery. As these should last between 3-4 years, it’s essential that it remains in good condition.
Another way to verify that your battery is functioning optimally is by taking a test drive. This will give you an opportunity to determine whether the issue lies with a weak battery or something else entirely.
Check the Ignition
A malfunction indicator lamp, also known as the check engine light, is an engine management system that alerts drivers of potential issues with their cars. This warning can range from major issues to something as minor as a loose gas cap or disconnected spark plug.
However, the best course of action is to have your car thoroughly examined before anything more serious happens. Common causes for malfunction indicator lamps include defective oxygen sensors or a malfunctioning catalytic converter.
Once you’ve identified an issue with your vehicle, the next step is to figure out how to fix it. One option is using a code scanner which can read any trouble codes stored in your car’s computer system.
With this information, you can diagnose your car’s issue and make a repair. If the fix is too complex for you to handle yourself, have your car towed to a mechanic’s shop where they will take care of everything for you.
Check the Fuel System
The malfunction indicator lamp is a visual alert to alert you of potential vehicle problems. Usually, this light remains steady; however, it may flash briefly if there’s an urgent need for action.
Before attempting to repair the malfunctioning indicator lamp, be sure to inspect your fuel system. This is one of the most essential systems in your car and neglecting to maintain it could lead to major issues.
A fuel system consists of several key elements: the tank, lines, pump and filters. These pieces work together to guarantee that you’re getting the correct amount of fuel into your engine.
Your fuel gauge is your main interface with the fuel system. Generally, it’s most accurate between 1/4 and 3/4 of a tank, though precision decreases after that point.
Check the Tire Pressure
One of the primary reasons your malfunction indicator lamp illuminates is due to low tire pressure. This can affect how your vehicle handles and steers, as well as affect fuel economy – underinflated tires tend to use more gas than properly inflated ones do.
It’s always wise to check the air pressure in your tires periodically, especially when they’re cold. This is because rapid changes in temperature can cause them to lose or gain pressure quickly.
If you’re uncertain about the correct psi for your tires, consult either your vehicle manual or the placard inside the driver’s door jamb.
If you’re not sure of the correct psi for your tires, have a professional inspect your vehicle and confirm that all tires have the appropriate pressure. Underinflated tires make driving more challenging and can increase fuel consumption and CO2 emissions from your car.