3239386 - E3580 PREPARATION FOR CELLULAR TELEPHONE - Functional description

Functional description

The connector D75 receives a supply directly (pin 6) from the battery via the line for fuse F10 of the junction unit B1 and the maxifuse J/B1 of B99 . It receives a supply controlled by the ignition (INT) (pin 8) via the line for fuse F1 of the junction unit B1 . With the side lights switched on, the supply reaches pin 7 by means of the line coming from the switch for the steering column switch unit H5 , protected by fuse F4 of the additional fuse box B98 B. Pin 5 of connection D75 is earthed, whilst pins 9 and 10 provide the signal for the speaker P36 , connector B, whilst connector A is for the radio  See E3510  RADIO . Lastly, pin 1 is connected to the radio P20 (MUTE function).