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2009 CTS-V
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93 Posts
Discussion Starter #1
Hi Guys , I dont know what is wrong , the CHECK ENGINE llight came out , what is it about !??! what might be wrong !?!? what shall i do ..?!!

plz help


but today , i just came back home , i parcked the car for 10 mins , then turned it on again , and the light was ON !!
 

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If you have access to a scanner, check for and record any DTCs that have been set and cause the malfunction indicator lamp (MIL) (sometimes referred to as the Check Engine light because it looks like a little engine) to be set. Then reset the DTCs. Resetting the DTCs will also cause the MIL to go off. If the DTC(s) call(s) for an easy fix, do it. If subsequent start/shutdown cycles cause the MIL to come back on and the same DTCs are set, the car needs attention from your dealer. If the car has been modified, you probably cannot get free help from the dealer.

If you do not have access to a scanner, try reseating the gas cap (it will take several start/shutdown cycles to turn off the MIL). As Malibu310 suggested, an improperly seated gas cap can cause the MIL to come on and this is a frequent error.
 

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2009 CTS-V
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93 Posts
Discussion Starter #7
If you have access to a scanner, check for and record any DTCs that have been set and cause the malfunction indicator lamp (MIL) (sometimes referred to as the Check Engine light because it looks like a little engine) to be set. Then reset the DTCs. Resetting the DTCs will also cause the MIL to go off. If the DTC(s) call(s) for an easy fix, do it. If subsequent start/shutdown cycles cause the MIL to come back on and the same DTCs are set, the car needs attention from your dealer. If the car has been modified, you probably cannot get free help from the dealer.

If you do not have access to a scanner, try reseating the gas cap (it will take several start/shutdown cycles to turn off the MIL). As Malibu310 suggested, an improperly seated gas cap can cause the MIL to come on and this is a frequent error.
What do u mean by (( an improperly seated gas cap )) bro ,,?? and how to reseat it !?!?
 

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2009 CTS-V
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93 Posts
Discussion Starter #10
But it .. is it possible that the Check Engine light comes on coz of the gas cap ..?!!

knowing that my car is STOCk .., no mods at all , is that something serious ?!

i will try to reseat the gas cap now ..
 

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2013 6MT V wagon, OBM, 2009 silver V sedan (traded)
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Ted's advice is right on the money. I had the same experience this weekend and I posted about it in the "problems" thread. Luckily, I have a scanner, and so I had my answer in about ten minutes (including time spent Googling). We won't know whether this is anything serious until we know which code you pull.
 

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2009 CTS-V
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93 Posts
Discussion Starter #13
Ted's advice is right on the money. I had the same experience this weekend and I posted about it in the "problems" thread. Luckily, I have a scanner, and so I had my answer in about ten minutes (including time spent Googling). We won't know whether this is anything serious until we know which code you pull.
I c ..., thanx for sharing the info bro ..

I dont have scanner .. so i must take it to the dealer ..

and in ur situation it was the gas cap ?!?! or what was the prob ..?
 

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2009 CTS-V
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93 Posts
Discussion Starter #14
And Now i found out something else .., that I cant start the car by the remote !? it wont start remotely !? this is the first time ! everyday i start the car remotely in the morning !!
is it something related to the (( Check Engine )) light ..?!

By the way , I tried to reseat the gas cap ...
 

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2013 6MT V wagon, OBM, 2009 silver V sedan (traded)
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My situation was not related to the gas cap. Sounds like electrical gremlins and it's time for a visit to the dealer.
 

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2009 CTS-V
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93 Posts
Discussion Starter #16
My situation was not related to the gas cap. Sounds like electrical gremlins and it's time for a visit to the dealer.
bergstpg === He had the same problem (( the check engine )) light thing ..., in his thread (( V2 Throttle control problem )) , and he mentioned that the dealer changed the spark plugs , and the problem solved .., but then came back again .., because he had something else .. ( the winter tyres ) and another problem .. , so dont u think it might be spark plugs !??!
 

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CTS-V 2009 White Diamond, 996TT Silver, G35 Coupe 6mt, M45S
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413 Posts
bro, dude, man, IT COULD BE ANYTHING... go to the dealer!!!!!!
Check engine light will come on for a million things.
Without the actual code that's thrown, it's hard to know.
You're driving yourself crazy.
 

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crushing Vs with my Wurm
2013 GT500 - 700+ HP
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12,266 Posts
your car is doomed. Park it and run away before something else happens.


sheesh.....I guess the sky must be falling over there.



F
 

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2009 CTS-V Radiant Silver/Ebony Auto
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144 Posts
BTW remote start will not work when check engine light is on- computer shuts off that feature
 

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STS, XLR, STS V-Series, CTS V-Series, XTS....
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Dont worry about that. The vehicle will not remote start with a check engine light. There are not electrical issues with your vehicle. Just need to identify the check engine light and proceed to monitor the vehicle. If it is the gas cap, just take it off and screw it back down till you hear at least 3 clicks. If the vehicle has an improperly seated gas cap you will get an EVAP code which will cause a check engine light. Once the vehicle detects that the CAP is sealed properly the check engine light will turn off and you will be able to remote start your vehicle again.

Thanks,

Dr. Design
D3 Cadillac

And Now i found out something else .., that I cant start the car by the remote !? it wont start remotely !? this is the first time ! everyday i start the car remotely in the morning !!
is it something related to the (( Check Engine )) light ..?!

By the way , I tried to reseat the gas cap ...
 
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