What reader are u trying to use there are many out there that wont talk to the obs truck espically the 94 and 95s my shops snapon doesnt like to talk to it I got a usb cable and forscan on my laptop and it talks great to my truck.I finally found the plug to connect the code reader underneath the dash, but it will not communicate. I have checked the fuse and it's good. Had the guy at parts store try theirs with the same results. I'm stuck! Any ideas??
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