S&T Series Blazer, Bravada, Envoy, Jimmy, Rainier, Trailblazer, Xtreme

Diagnostic Trouble Codes

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Each OBD II Diagnostic Trouble Code (DTC) is directly related to a particular Monitor Test. The Diagnostic Management System sets codes based on the failure of the tests during a trip (or trips). Certain tests must fail during two consecutive trips before the DTC is set.

 
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