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      10-27-2012, 08:28 AM   #133
Private First Class

Drives: 2006 330xi
Join Date: Nov 2006
Location: Boston, MA

iTrader: (1)

Make sure of the Grounds

When I swapped my seats -- the lumbar and bolsters didn't work -- but everything else did. I found the ground for these functions (on the seat side) was different than the rest of the seat. My seat side connector had 2 brown ground wires going to the connector -- but the car side connector had on one brown ground wire coming in. I shorted the two brown wires on the seat side and this got everything working.