After giving someone a jump start, my 'Check engine" light has been on. What has caused this?


Asked by Nov 26, 2007 at 11:22 AM about the 2004 Ford Focus ZTS

Question type: Maintenance & Repair

3 Answers


You will need to have your codes read. Many auto parts stores do this for free. There are at least 150 separate issues that could light your check engine light.

2 of 2 people found this helpful.

this is for every one out their to get the word out.DO NOT HOOK JUMPER CABLES TO A COMPUTER CAR WILL of 9 OUT OF 10 TIMES DAMAGE YOUR CAR EVER SO SLIGHTLGY.

2 of 2 people found this helpful.

Try unhooking the battery for a few minutes to reset the computer.If this does not work then the computer may be damged.Get a diagnostics done. Advanced Auto Parts will usually run a diagnostics for free.

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