So my passenger heated seat does not work, when you push the button the three lights come on and the relay under the seat clicks continuously, no difference if you turn the heat level. So I have tried the following; swap relay with working version from driver side, no difference. Checked all the fuses, no difference. Read codes with BimmerLink, get errors: C90D71 K-LIN_6 seat heating BFH: Missing LIN slave C90D72 K-LIN_6 seat heating FAH: Missing LIN slave Any thoughts on what is wrong ? Thanks
