Description

Heated Rear Window Description
The HRW is operated from a non-latching switch located to the left of the instrument pack. The switch has an indicator light to show when the HRW is operating. The HRW element comprises fourteen metallic strips bonded to the inside surface of the rear window The HRW will only function when the engine is running due to the high current draw and subsequent load on the battery.

The HRW can also be operated by the air temperature control ECU on vehicles fitted with air conditioning

When the HRW is selected on heater elements in the door mirror glass also operate. Refer Mirrors - Description and Operation.

Heated Rear Window Supply

Circuit Supply
A feed from the battery positive terminal is connected by an R wire to the engine compartment fusebox where it passes through fusible links 1, 6, 8 and fuse 13 Fusible links 1 and 6 are connected in series.

A feed from fusible links 1 and 6 is connected from the engine compartment fusebox to the passenger compartment fusebox on an S wire where it passes through fuse 8 and is connected to the contacts of the heated rear screen relay.

A feed from fuse 13 in the engine compartment fusebox is connected on a PN wire to the Body Control Unit (BCU).

A second feed from fuse 13 is connected on a PN wire to the passenger compartment fusebox and is connected to the coil of the heated rear screen relay.

A feed from fusible link 8 in the engine compartment fusebox is connected on an NW wire to the passenger compartment fusebox and from the fusebox to the ignition switch on an N wire.

Ignition switch supply
When the ignition switch is in position II, the feed from fusible link 8 flows through the ignition switch to the passenger compartment fusebox on a Y wire. The feed continues through fuse 29 in the passenger compartment fusebox and is connected to the BCU on a GU wire.