Sedan

Heating For Rear Window Diagrams:

Heating For Rear Window Components:

Locations of components

3 Earthing point
In the fascia

17 Extra rheostat for the lighting of switches and controls
On the left-hand side of the fascia

22A Fuse holder
In the electrical distribution box, in the engine compartment, on the left-hand wheel housing

47J Rear window heater warning lamp
In the combined instrument on the instrument panel

48 Cigarette lighter
On the fascia

57 3-pole connector
In the luggage compartment, at the left-hand air outlet

59 2-pole connector
In the luggage compartment, at the left-hand air outlet

113 Relay/time delay relay for the electrically heated rear window
In the electrical distribution box in the engine compartment, relay position C

115 Electric heater for the rear window

116 Switch for the electrically heated rear window
In the centre of the fascia

152A 29-pole white connector
152B 29-pole red connector
In the electrical distribution box in the engine compartment, on the left-hand wheel housing. The connectors are accessible from the interior of the car

158 Negative distribution terminal

159 Distribution terminal +15
In the electrical distribution box, in the engine compartment, on the left-hand wheel housing

169 Switch, AC
On the fascia

207 Electrically-heated rear-view mirrors
One on each front door

Operation
The electric heating of the rear window can be switched on and off by means of switch 116. (The switch is spring-loaded and is combined with a time- delay relay.) For a complete description of the wiring for the lighting of the switch on cars for the US and CA markets and 1989 model for JP, see also the section entitled "Lighting systems, Lighting for controls - US, CA and l989forJP".

The switch is supplied from fuse 13, via the 29-pole red connector i52B (when the ignition switch is in the drive position).

When the switch is depressed, relay 113 will be energized. Warning lamp 47J in the combined instrument will light up.

Electric heater 115 for the rear window is supplied from fuse 29, via the relay contacts.

On the 3-D and 5-D models, the electric heating of the rear window is earthed to the tailgate which, in turn, is earthed to earthing point 9 (cable 211A black).

Time-delay relay
On certain markets, relay 113 is replaced by a time- delay relay and spring-loaded switch 116.

After the switch has been depressed and the relay has been energized, the time circuit in the relay will be supplied (terminal 15) from fuse 22. After around 10 minutes, the relay will switch off the supply to the electric heating for the rear window. If the switch is depressed when the heating is on, the relay will trip.

When the electric heating for the rear window is switched on, warning lamp 47J will be supplied from terminal E of the relay.

If the ignition is switched off while the electric heating for the rear window is switched on, the supply to terminal 15 will be opened, and the relay will immediately switch off the supply to the heating element for the rear window.

US and CA markets
The time-delay relay also controls the heating of the rear-view mirrors.

Fault-tracing hints
The electric heating for the rear window will be operative when the ignition switch is in the drive position.

1. Check fuses 13 and 29 and check that the supply to them is live. (On certain markets, also fuse 22.)
2. Check that the supply to the switch and terminal 30 of the relay is live.
3. Check the relay: Press the switch and check that the supply to the electric heating for the rear window is live.
4. Check the connectors, cable harnesses and earth connections.