Codes

By PaulQ
February 24, 2006 in Ask A GM Technician

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PaulQ

Posted February 24, 2006

How do you clear service engine light codes in a 94 full size blazer 5.7l 350?

The Haynes manual I have said to unhook the negetave side of the battery to clear the codes. If you have repaired the problem, the code should not show up again! The codes can also be cleared with a scanner.

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