Skip the auto shop - Our mechanics make house calls

Q: What does the malfunction indicator Warning Light mean?

asked by on

What does the malfunction indicator Warning Light mean?

A: The malfunction indicator Warning Light is ...

The malfunction indicator Warning Light is connected to the On-Board Diagnostics-Second Generation (OBD II) system, which gauges the vehicle’s emissions. When the malfunction indicator Warning Light illuminates, then the OBD II system has detected an issue with the emissions system, and you should get your car inspected as soon as possible. Tip Like all warning lights, the malfunction indicator Warning Light will briefly illuminate when your vehicle is turned on. The light is only a problem if it stays lit when the engine is running.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: How do I customize the Auto Fan Speed settings?

The Auto Fan Speed settings control the automatic blower speed, and can be personalized through the audio system. 1. Turn on the infotainment system. 2. Press the CONFIG button to select the Configuration Settings menu. 3. Rotate the MENU/SELECT knob...

Q: What Are California's Emissions Standards?

California emissions standards are the highest in the nation, and exceed the EPA’s regulations. You’ll find that many vehicles sold in different parts of the country are rated for California’s emissions standards because automakers are required to manufacture a certain...

Q: Evap solenoid system

I applaud your diligence in reading the code and working the specific problem! There is another angle to this issue that I'm sure was next on your list - cleaning (or replacing) the evaporation vent purge valve, which accumulates dust...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...