199001393 - E4090 NAVIGATOR FUNCTIONAL DESCRIPTION (Provision for navigator)

FUNCTIONAL DESCRIPTION

The radio P20 is supplied directly (4 of connector A) from the battery via the line for fuse F51 of the Body Computer M1.The radio P20 is supplied via the ignition (7 of connector A) from the battery via the line for fuse F61 of the Body Computer M1.Pin 8 of connector A is earthed.Pin 6 of connector A of P20 receives the power supply for the dimmer lighting, coming from pin 19 of connector H of M1.The Body Computer M1 - connector G - is supplied directly from the battery via a line protected by maxifuse F2 of the engine compartment control unit B1; its ignition-controlled supply (INT) is received at pin 2 of connector D; pin 10 of connector H or M1 supplies the Body Computer with a reference earth.The aerial power supply P25 is sent from the radio P20 from pin 5 of connector APin 1 of connector A of P20 receives a speedometer signal from pin 23 of the ABS control unit M50.Pin 3 of connector A of P20 receives a reversing signal from reversing light switch I20.The switch for the reversing lights I20 receives a supply controlled by the ignition (INT) from the fuse line F59 and relay T6. this is an ignition-operated supply controlled from pin 1 of connector A of M1.Signals leave connector B of P20 carrying signals to the speakers (used also by the navigation system):- pins 5 and 6 to the left front speakers P35 and P45;- pins 3 and 4 to the right front speakers P36 and P46;- pins 7 and 8 to the left rear speaker P30;- pins 1 and 2 to the right rear speaker P31;