General
Interior illumination provides background lighting for the instrument pack and control switch graphics. Interior illumination operates when the lighting switch is turned to the side or headlamp position, irrespective of ignition switch position.
Feed from the positive battery terminal (C0192) is supplied to fusible link 12 and fusible link 4 of the engine compartment fuse box (C0632) on an R wire. Fusible link 4 (C0574) is connected to the timer relay (C0587) by an NW wire. The timer relay is located in the passenger compartment fuse box, and is controlled by the Central Control Unit (CCU) (C0592).
When energized, the timer relay provides a feed to fuse 29 of the passenger compartment fuse box. Fuse 29 (C0580) is connected to the window lift switch pack (C0343) by an RB wire. The switch pack (C0081) is earthed on a B wire.
Fusible link 12 (C0575) is connected to the lighting switch (C0041) by an RN wire. When the lighting switch is turned to the side or headlamp position, current flows across the switch (C0041) to fuse 17 of the passenger compartment fuse box (C0587) on an R wire.