Having problems with your Chevrolet Blazer ?
Check engine light on code 1683 - Blazer Chevrolet Cars & Trucks
Here's what I can tell you, that code is a DEALER ONLY code, but there are lists of what that code means, here's one of them http://www.engine-light-help.com/chevy-check-engine-light.html, how ever this code is very vage and not too help full, but you might be able to find more info on it somewhere online.
Repair Help & Product Troubleshooting for Chevrolet Blazer
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