Question about 1992 GMC Sierra

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92 GMC Sierra 1500,5.7 v-8, Service engine soon light comes on consistantly.brake light sarted blinking 10 times and cycling through over and over again.Obviously an OBD 1 system with an early low tech abs solenoid brake set-up for the rear brakes only.Most likley 2 different problems but I haven't been able to find code info online as of yet.Where can I get code desciptions?

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Try another tester. This sounds like a safety issue. Take it to a shop ASAP.

Posted on Sep 01, 2017

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Post your code s here and I can look them up in my service manuals .

Posted on Sep 01, 2017

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