Driver’s window

Operating the passenger window switch to the raise the window reverses the polarity of the passenger window motor connections. While energised, the passenger window motor runs to raise the window.

Driver’s window

Operating the driver window switch to lower the window connects the SK (LHD) or SR (RHD) wire, between the window lift ECU (C0341) and the driver window switch (C0321 on LHD; C0081 on RHD), to earth on the B wire between the driver window switch (C0321 on LHD; C0081 on RHD) and an earth point (C0557). When an earth is detected on the SK (LHD) or SR (RHD) wire, the window lift ECU (C0341) powers the driver window motor, via the SW and SU wires, to lower the window. The window lift ECU (C0341) earths the driver window motor on the B wire between the window lift ECU (C0341) and an earth point (C0564).

Operating the driver window switch to raise the window connects the SB (LHD) or SY (RHD) wire, between the window lift ECU (C0341) and the driver window switch (C0321 on LHD; C0081 on RHD), to earth on the B wire between the driver window switch (C0321 on LHD; C0081 on RHD) and an earth point (C0557). When an earth is detected on the SB or SY wire, the window lift ECU powers the driver window motor, via the SW and SU wires, to raise the window.