1998 Toyota Avalon XLS A/C + Heat Not Working

[sulman2703]

1998 Toyota Avalon XLS, mileage: 140,000. Without warning, the air conditioner & fans quit working. This car has an outside air temp display & it suddenly does not show a temperature reading. I checked every fuse I could fine with a meter. All OK. The car starts & runs fine & all other electrical works, i.e., lights, rear defroster, windows, door locks, seats. It is equipped with an auto mode for the air with a temperature adjustment that will control the blower speeds. This is not working, or if you try to punch manual blower speeds, (each button will light up) but will not turn fan on, or if you push the a/c button, will not work or light up. No engine service light either?

I noticed a few others had a similar problem but there was no absolute fix listed in response, anyone have any idea?

[TRDcrazy]

Bad Fan Motor!

[sulman2703]

Today the A/C and Heat started working again. If it was a bad blower motor wouldn't it not work at all?

[sulman2703]

Talked to a buddy of mine at the local Toyota dealership here in Chicago, turns out there was a recall for 98 Avalon XLS's for this exact problem. The AMPLIFIER is the culprit, 450$ part, replaced and I'm good to go....