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Anyone have any experience with Codes B1850 and B1860?


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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?


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