Blazer Forum - Chevy Blazer Forums - SES Light Unreadable

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O-man21

06-13-2012 10:52 AM

SES Light Unreadable

2000 2 door blazer ZR-2, 120k miles.

Drove around all day yesterday, no problems. Turned it on after a short stop, and the "service engine soon" light came on.

It still runs fine, doesn't feel or sound like anything is wrong with it.

Took it to 2 separate car parts stores (Autozone and O'Reilly) and both said that their computers couldn't connect to my truck.

What's wrong here? How do I get it so that their scanners will read the codes?

rriddle3

06-13-2012 01:20 PM

Check the fuse for the cigarette lighter. It also powers the OBD port.

50lb_cat

06-13-2012 01:20 PM

https://blazerforum.com/forum/tech-articles-diy-29/obd2-scan-tool-does-not-communicate-class-2-device-37896/

+1, if that doesn't work, check out the link

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