It could be that the connector wire broke in the rear. It happened to me.
One reasons a Dodge W 250 defroster may not work is the blower motor relay. This can be replaced easily. If it isn't the relay, there may be a problem in defroster door binding. A mechanic will be able to determine the cause.
rear window defroster relay in a 97 Pontiac firebird
Where do u install a relay flasher on a 2002 olds alero
Back Window Defroster
where is the fuse and relay for the power windows on a 2002 Oldsmobile alero
The relay panel on the 2000 Oldsmobile Alero is under the steering column and above the brake pedal. The relay pops out with a screwdriver.
A/C or defroster on Relay stuck in closed position Temperature sensor not sensing proper temperature
Any relay could be the cause.
no it is manual
Do they work when you turn the A/C or Defroster on? If so it could be temperature sensor If not it could be fuse
pulls out like a fuse
The 2001 Alero (probably the 2004 as well) has the horn relay in the black fuse/relay box under the hood close to the fire wall at the driver side. There is a thumb screw on top and when you open the lid it shows a list of fuses and relays. The horn relay is #21.