"Third Row of Seats Blower is Inoperative. The blower in the third row of seats is not working and the fault code ""E70C32 - AC-LIN: Heating in third row of seats is not responding"" has been entered in the IHKA (Integrated Heating and Airconditioning, Automatic) control unit. CAUSE LIN BUS short or open circuit in wiring or connectors Blower motor, micro switch defective Control unit, A/C, for 3rd seat row defective"