Hrw light on

My experience of your model is limited but if the radio antenna isn't visible it is possible it is printed on one of the windows in the same way as the heated rear screen element.

There has been a fashion for such things in the past. Sometimes the HRW element has been used as an antenna and later a printed antenna on the front windscreen wasn't unusual. The last few I have seen were on the rear quarter glass.

I hope this helps.

fan is not working

i had a 2001 cirrus that did that i found that it was a vacum line for the defrost as for the rear window if the light is on in the buttonon the dash then you might want to see if the wire that goes to the defroster on the window are both hooked up

............1994 Jeep Grand Cherokee
......(Fuse Block - Passenger side of Dash)
.....1........5........9........13........17........21........25
..20 A...15 A...20 A....20 A....7.5 A.....15 A....30 A
.
.....2........6.......10.......14........18........22........26
..15 A...15 A...10 A....20 A.... 15 A.....15 A....30 A
.
.....3........7.......11.......15........19........23........27
..20 A...15 A...15 A.....3 A......15 A....15 A.....10 A
.
.....4........8.......12.......16........20........24........28
..15 A...15 A...15 A....20 A.....10 A....7.5 A....30 A
1)Trailer Tow Relay
2)Brake Lamps
3)Hazard Lamps
4)Security Lamp
5)Interior Lighting
6)Security Alarm Module
7)Security Alarm Relay, Security Alarm Module, Flash-to-Pass
8)Overhead Console, Keyless Entry, Radio Memory/Clock
Memory/Chime Module, Power Locks, Power Mirrors,
HEVAC and VIC
9)Rear Wiper
10)Radio
11)Cigar Lighter
12)Parking Lamps, Automatic Headlamps
13)Horn Relay
14)Power Lock Relays
15)ABS Module and Relay
16)Turn Signals
17)Heating and Air Conditioning Module
18)Airbag Module
19)Interior Mirror, Auto Headlamps, Overhead Console,
VIC/GDM Module, Heated Rear Window Relay Coil,
Illuminated Entry Relay and Chime Module
20)Heated Rear Window Switch, Overdrive Switch, Speed Control
21)Security Alarm Module, Lamp Outage Module
22)Airbag Module, Speedometer, Tachometer, Telltales and
Gauges
23)Heated Mirror Feed, Heated Rear Window Switch
24)Instrument Panel Illumination
25)Power Seats
26)Power Windows, Power Sunroof
27)Security Alarm Module and Front Wiper
28)Heated Rear Window Relay

Do you have rear ac and rear window defrosters if so the heater switch has failed. A GM priority diode unavailabe to any one but GM. Head to the local auto recyclers or pop for the $200 switch from your local GM dealer

You should take a test light & check for continuity between the feel & ground at the window. If there is no power check the switch as it is probibably burnt out.

HRW heated rear window ,but that all i can tell you sorry never seen an impala here in spain

Check rear demister control relay operation,
Check for presence of 12V power (and ground connection) at rear window heater connection.

Check continuity of the rear window heating element.

Is it just the Rear Window Light that stays on, or is the Rear Window Light and the brake lights located at the back/bumper of the car? If it is BOTH the Rear Window Light AND the brake lights at the rear of the car, then you likely have a faulty brake switch located at the brake pedal inside the car cabin. When the brake pedal is in the normal position, ie - you are not depressing the brake pedal, the arm of the brake pedal leading to the pedal with your foot pushes upon... this arm is applying constant pressure to the switch - with keeps your brake lights OFF. When you apply pressure to the brake pedal, it moves the brake arm away from the switch, which activates the circuit, and your brake lights turn on. If this switch is broken, your brake circuit thinks the brake pedal and arm are being pushed away from the switch, and your brake lights turn on. As you are aware, having the light on constantly can wear down your battery AND the heat from this constant light bulb of the brake light in the rear window can deform the shape of the red reflector in this rear window light housing. If, however, it is only the rear window light that stays on - then it is probably a loose or bad connection where this light plugs into the rest of the circuit in the trunk near the back seat. If this is the case, follow the wires from the rear window light assembly to the point where they plug into the rest of the circuit (inside the trunk) and unplug this wire set, clean the terminal ends, and plug them back together. ***WAIT, WAIT!!*** because you of the risk of touching the terminal ends together and blowing the circuit, if you also plan to clean the hot side, please remove the NEGATIVE battery terminal while cleaning (DO NOT USE WATER, just a wire brush or steel wool). After you are done cleaning and have the terminals reconnected, reconnect the negative battery terminal (you will also have to reset your radio stations and radio clock).

check wire at window