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Home >> Chevrolet >> 1999 >> Express 1/2 Ton Van V8-5.7L VIN R >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Diagnostics >> History
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

History

This selection displays only the DTCs that are stored to the history memory of the control module. The history memory will not display the Type B DTCs that have not requested the MIL. The history memory will display all of the type A and B DTCs that have the MIL and have failed within the last 40 warm-up cycles. In addition the history memory will display all of the type C DTCs that have failed within the last 40 warm-up cycles.