2002 Blazer "Check Engine Soon" light is on but scanner doens't detect any codes. What do I do now?
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Asked by thighland Mar 02, 2016 at 08:44 AM about the 2002 Chevrolet Blazer

Question type: Maintenance & Repair

2002 Blazer "Check Engine Soon" light is on but when we hooked up the scanner it doesn't show any codes. I need to get it inspected, but I can't if I can't find out what's wrong.

5 Answers
224,135

Rowefast answered 8 years ago

It may be that at the ALDL connector has no power for the scanner? Something not working electrically inside the vehicle?

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thighland answered 8 years ago

car runs great and no apparent electrical problems. Only thing I know is wrong is slight power steering fluid leak. Everything else is good.

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224,135

Rowefast answered 8 years ago

Gotta get a code or it is a guessing game. Would need someone to look at it to see why the light is on.

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thighland answered 8 years ago

It's a yellow light. You think an oil and filter change will do the trick?

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