The Heated Rear Window (HRW) is operated via a latching switch mounted in the fascia console. When the switch is pressed, a warning lamp located in the instrument pack and a switch mounted tell-tale LED both illuminate to indicate the HRW is operating. The HRW only operates when the ignition switch is turned to the 'ignition' position.
Operation
Power Distribution
Feed from the positive battery terminal (C0192) is supplied to fusible link 1 and fusible link 5 of the under seat fuse box (C0632) on an N wire. Fusible link 1 is connected in series with fusible link 2, which is also located in the under seat fuse box. Fusible link 2 (C0570) is connected to fuse 32 of the passenger compartment fuse box (C0595) by an NK wire. Fuse 32 (C0595) provides a constant battery feed to the HRW relay (C0044) on an NO wire.
Fusible link 5 (C0570) is connected to the ignition switch (C1043 on LHD, C0028 on RHD) by an NW wire. When the ignition switch is turned to the 'ignition' position, current flows across the switch (C1732 on LHD, C0094 on RHD) to fuse 14 of the passenger compartment fuse box (C0580) on a W wire. Fuse 14 (C0580) provides an ignition feed to the HRW switch (C0072) on a WG wire.
Heated Rear Window
When the HRW switch is pressed, current flows across the switch (C0072) to the HRW relay coil (C0044) on a WB wire. The relay coil (C0044) is earthed on a B wire. The energised HRW relay (C0044) provides a feed to the HRW element (C0381) on a WB wire. The element (C0381) is earthed on a B wire.
When the HRW switch is pressed, a feed is also supplied to the tell-tale LED (which is integral with the switch), and the instrument pack warning lamp (C0233) on a WB wire.