2401138 - E3030 HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING - Functional description (High setup)

Functional description

The heated rear windscreen relay T11, located in the junction unit under the dashboard B2, controls the engagement of the heated rear windscreen P55 demisting function through the line protected by fuse F40 of junction unit B2. The supply for the coil for relay T11 is 'controlled by the ignition' (INT/A) and is energized by an earth signal coming from the Body Computer M1 - pin 6 of connector F; this signal is sent according to the control logic described previously and when there is an earth signal at pin 32 of connector G of M11 from the heated rear windscreen button or MAX-DEF function on; This signal comes from the climate control system control unit M70 to which the signal for switching on the LED is sent from pin 21 of connector H of M1. Activation of door mirror demister coils P60 and P61 is controlled by driver side door control unit M66 and passenger door control unit M67 , connected via the CAN line to Body Computer M1 . Control units M66 and M67 are supplied at pin 11 of connector D - from a line protected by fuse F32 of underfacia control unit B2 On the basis of the complex strategy described previously, the demister acivation control is sent via the CAN network also to the two door control units that control the coils in the mirrors P60 and P61 - from pins 7 and 9 of connector D of M66 and M67.