ICE/Satellite Navigation Supply (Description and operation)

The satellite navigation functions are controlled from the head unit. The radio and CD functions can be controlled from the head unit or the remote controls.

ICE/Satellite Navigation Supply

Circuit supply A permanent feed from the battery positive terminal is connected by an R wire to the engine compartment fusebox, where it passes through fusible link 3. From fusible link 3 the feed passes on an NR wire to fuse 20 in the passenger compartment fusebox. From fuse 20 the feed flows on a P wire via header C0725 to the head unit and the CD autochanger. The permanent feed to the head unit powers the internal memory. The permanent feed to the CD autochanger allows the CD magazine to be changed with the ignition off.

The head unit is earthed by two B wires from the head unit to splice A22/A190, and a B wire from the splice to earth point C0361-1. The CD autochanger is earthed by an N wire to connector interface C0912-8/C0911-8, then a B wire to earth point C0361-1 via splice A22/A190.

A feed for illumination passes through fusible link 13 in the engine compartment fusebox and on an NG wire to the lighting switch. When the side lamps or head lamps are selected on, the feed passes from the lighting switch to fuse 33 in the passenger compartment fusebox on an R wire. Fuse 33 is connected to header C0759 by an RO wire. After passing through two links on header C0759, one on an RO wire and one on an RN wire, the feed is connected to the head unit on an RN wire.

The permanent feed to the engine compartment fusebox is also connected in series through fusible links 1 and 7. From fusible link 7 the feed is connected to the contacts of the auxiliary circuits relay.