How the check engine light works? - Hyundai Genesis Forum
Hyundai Genesis Sedan & Coupe - General Discussions General discussion about the Hyundai Genesis Sedan and Coupe.

LinkBack Thread Tools Display Modes
post #1 of 3 Old 04-11-2012, 02:27 AM Thread Starter
Junior Member
Join Date: Feb 2012
Posts: 2
mattyhandhand is on a distinguished road
(Thread Starter)
How the check engine light works?

The Check Engine light, which is officially called the "Malfunction Indicator Lamp" (MIL) alerts you when your vehicle's OBD II system has detected a potential emissions problem. Depending on the nature of the problem, the Check Engine lamp may come on and go off, remain on continuously or flash. Of course, none of this gives you any clue whatsoever as to what might be going on.
Some people panic when they see the light, fearing their engine is experiencing some kind of major problem. But fear not, because in most instances, the problem is usually minor and is nothing that requires your immediate attention.
Here's how the Check Engine Light works. When the OBD II system detects any fault that may cause an increase in emissions, it sets a "pending code" in the computer's memory. The Check Engine Light doesn't come on yet because the system needs to make sure the problem is real and not a temporary glitch. If the same problem occurs on a second trip (under the same driving conditions), the OBD II system will then set a diagnostic trouble code (DTC) and turn on the Check Engine Light.Both the Autel MaxiDAS® DS708 and the Digiprog3 are good code reader tools.
mattyhandhand is offline  
post #2 of 3 Old 12-31-2012, 06:39 PM
Join Date: Feb 2012
Location: london
Posts: 25
laichekam is on a distinguished road
good job thank you
happy new year
laichekam is offline  
post #3 of 3 Old 07-01-2013, 01:49 AM
Join Date: Feb 2012
Location: london
Posts: 25
laichekam is on a distinguished road
you can find more in the technical support of which is a good web for obd2
laichekam is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome