Can your "check engine light" come on in your car because of a broken headlight

i hit a racoon last night and it broke my headlight is that the reason why my check engine light comes on
Asked Sep 22, 2010
It is unlikely that a headlight would cause that.

Most vehicles have a procedure for reading a code put out by the check engine light. Something like turn the ignition on for a second then back off, then on. When the onboard computer gets the signal it will flash a sequence of long and short blinks that can be converted to a number that tells you what the problem is.

The procedure for doing that will be in the vehicle service manual or a Haynes manual for that make and model vehicle.
Answered Sep 22, 2010
yea but what would cause that to come on because the check engine light never came on untill I hit the racoon on accident then after that it came on and I looked at the engine and it seemed like nothing was wrong the car still started up fine
DL123 Sep 22, 2010
The check engine light indicates problems with a lot of things other than the car just starting. If your theory is correct, when you replace the headlight, the check engine should go off. If it was my car, I would want to know what the problem was before I drove it. A car with no oil will start but you don't get far with it.
Rob Sep 22, 2010
I don’t think check engine light performs well on all situations. Yes it true that many engine issues can be rectified with the help of this small light but sometimes its turn-on irritates a lot especially when there is not any problem in system. In this case, I fully agree with Rob, you should buy another headlight from any dealer like or other and replace it to check whether the check engine light turns off or not. No other idea seems better than this, hence I think you should go for it.
Answered Mar 30, 2015

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