02-13-2014, 06:16 AM
Join Date: Mar 2009
Location: Georgetown, Guyana
No - none of us does - and the reason none of us does, is that you haven't taken the time to give us any idea of what Suzuki you have.
In a nutshell, when the computer senses a problem, it sets a failure code and turns the light on to get your attention, you have to get the code read to know what the computer thinks is wrong.
On the early Suzukis you could read the codes with nothing more than a paperclip, and some of those turn the check engine light on based entirely on the odometer mileage (to remind you to have the emission system checked) and turning the light off is as simple as flipping a switch.
I see you mention the light going "on and off whenever it feels like" so it would sound like the "nag switch" is not the cause in your case, which doesn't mean it's not something simple, a loose gas cap can turn that light on, and so can an O2 sensor nearing the end of it's useful life - but you will never know, until you get the codes read.
Now - how about you fill in the missing details about the vehicle and we'll see if we can help you pin the problem down.
98 - 1.8 Mitsubishi Pajero iO
98 - 2.0 Suzuki Grand Vitara - SQ420
05 - 2.0 Suzuki Grand Vitara - JB420
15 - 2.4 Kia Sportage