DaveCarter Posted January 20, 2009 Report Share Posted January 20, 2009 I'm getting a B1850 and B1860 code on the 2003 Seville, and when I push the exit button or the driver 1 button the seats don't do anything. I know that the codes reflect lumbar up down sensor failure (B1860) and Lumbar forward/aft sensor failure (B1850) but have no idea how to check out the sensors. Anyone have any experience dealing with these codes/failure modes? Dave Link to comment Share on other sites More sharing options...
Ranger Posted January 20, 2009 Report Share Posted January 20, 2009 The exit button should not have any affect on the lumbar. The sensors are most likely in the seat back. Link to comment Share on other sites More sharing options...
Texas Jim Posted January 20, 2009 Report Share Posted January 20, 2009 I could be mistaken, but I think you have to PROGRAM the exit button and the Driver 1 button before they will do anything. Link to comment Share on other sites More sharing options...
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