Heated rear window relay T11, located in underfacia control unit B002, controls the simultaneous activation of the heated rear window demister function P055 - line protected by fuse F40 - and also the demister coils of windscreen washer nozzles O050 and O051 - line protected by fuse F41 -.The coil of relay T11 is supplied with an ignition-operated supply (INT/A from the steering lock control unit) and is excited by an earth signal from Body Computer M001 pin 6 of connector F; this signal is sent via the control logic described previously, and in the presence of an earth signal, to pin 32 of connector G of M001 from the rearscreen activation button pressed or the MAX-DEF function. This signal comes from climate control unit M070 (for versions with a manual climate control system, from pin 14 ofM070; for versions with an automatic climate control system, from pin 4 of connector A), to which as sent a signal to turn on the associated led - from pin 21 of connector H of M001 (only for versions with manual climate control system).Control units M66 and M67 receive a supply - at pin 11 of connector D - from the line protected by fuse F32 of underfacia control unit B002 .On the basis of the complex control logic illustrated previously, the engagement command for the defrosting is sent via the CAN to the two door control units as well which control the resistances located in mirrors P60 and P61 from pins 7 and 9 of connector E of M066 and M067.