psycoticss Posted July 10, 2016 Report Share Posted July 10, 2016 (edited) Hello members I have a 03 sierra did a v8 swap. I recently bought a under dash harness door harness ect. To do a power window door lock, was up late last night doing the swap but no power to windows ac don't work any help please thanks. Edited July 10, 2016 by psycoticss (see edit history) Quote Link to comment Share on other sites More sharing options...
SSmoothSilSS Posted July 10, 2016 Report Share Posted July 10, 2016 I would start with fuses, make sure to have the manual for the year of harness your using. Fuses are in different spots with the different years. Quote Link to comment Share on other sites More sharing options...
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