A/C only works in position 1 & 4

[trbomp5]

(help) My A/C only works in position 1 and 4. In 2 and 3 the light goes out, and it starts to blow warm air. Is there a fix for this? Would the A/C fix in the how to section solve this problem? The little A/C on/off button shouldnt be tied to the fan speed switch anyways.

Any ideas?

 

[Captain KRM P5]

this is a well known defect on 99-02 proteges. there is a TSB on it and it has to do with the circuit board. mazda will replace the unit under warranty.

 

[trbomp5]

thanks, I'll look

 

[trbomp5]

this is a well known defect on 99-02 proteges. there is a TSB on it and it has to do with the circuit board. mazda will replace the unit under warranty.

Ok, but what if my car has a salvage title? I bought it totalled and fixed it back up. Is the warranty pretty much gone then?

Andrew

 

[Captain KRM P5]

good question to which i have no answer. in that event if thats the case you will need an entirely new AC control head

 

[trbomp5]

thats what i thought. Thats probably an arm and a leg, because I'd want a new one that doesnt have that problem.

 

[Kansei]

Do they replace it with a modified model? If not you might as well ask mazdarecycling.com if they have one, they have a lot of P5s and some mazdaspeed proteges in stock so I'm sure they have some of the control units in stock. I wonder how much it is though

 

[trbomp5]

Do they replace it with a modified model? If not you might as well ask mazdarecycling.com if they have one, they have a lot of P5s and some mazdaspeed proteges in stock so I'm sure they have some of the control units in stock. I wonder how much it is though

You're right it would be nice to know if the new one has that problem fixed. 15k and a broken A/C. What a joke.

My 86 323 has 260,000 on it and the A/C still works great!

 

[protege503]

replace the switch i had posted the same question and the dealer replaced it the whole heater and ac switch

 

[Captain KRM P5]

Do they replace it with a modified model? If not you might as well ask mazdarecycling.com if they have one, they have a lot of P5s and some mazdaspeed proteges in stock so I'm sure they have some of the control units in stock. I wonder how much it is though

yes it is a modified model or as they call it "superseded part"

they run about 300 bucks

 

[trbomp5]

they run about 300 bucks

$300! They better call me in the morning after that raping.
At least cuddle for a little while.

I called the dealer to find out if I still have a warranty, but the mazda guys were gone already because of the holiday. I'll call back on tuesday.

Did any of our cars come with this updated part to look for one used? Or was it fixed after the production runs were over for us?

 

[smurfedpro5]

same thing here i inded up buying a new a/c unit bought it from somebody ont the forum for about 30 bucks shiped

 

[Kansei]

same thing here i inded up buying a new a/c unit bought it from somebody ont the forum for about 30 bucks shiped

I would do the same if I knew it wasn't going to break again. I wish I knew production date when they had fixed this or if the part number was different, the air isn't cold on speed 4 with the A/C anyways and 1 isn't enough air moving to keep the interior cool when stuck in NYC traffic for hours.

 

[TrueProtege]

there is a TSB on this prob. Something about a logic control module. My dealer said they would swap out mine as I am having the same prob.

 

[Dexter]

the problem was isolated to 02 proteges. i would think they should cover it...its a known defect..or moreso error in the circuit board design. If i knew exactly what parts they changed to fix this problem, i could help you out more. I am working on it though, as mine does the same thing, but because of an unrelated issue. the HVAC board IS infact connected to the fanspeed switch. The board reads the voltage based on what position the fan switch is in. Currently, my fan switch has been replaced by relays, and my A/C only works on speed 1 and 4 also. I thought maybe adding a resistor on one of the wires woudl fix it, but it doesn't help. I will do more testing and hopefully i can come up with something.

 

[Kansei]

the problem was isolated to 02 proteges. i would think they should cover it...its a known defect..or moreso error in the circuit board design. If i knew exactly what parts they changed to fix this problem, i could help you out more. I am working on it though, as mine does the same thing, but because of an unrelated issue. the HVAC board IS infact connected to the fanspeed switch. The board reads the voltage based on what position the fan switch is in. Currently, my fan switch has been replaced by relays, and my A/C only works on speed 1 and 4 also. I thought maybe adding a resistor on one of the wires woudl fix it, but it doesn't help. I will do more testing and hopefully i can come up with something.

Awesome because sadly, by the time I drove over to the dealership, I was at 50015 miles so it isn't covered

If it's isolated to 02 proteges (Mine is an 02.5) then I'll just start looking for 03 proteges parting out stuff.

 

[Lil Freek]

the same problem is happening on my 2001.
if my entire warranty is up, will they still replace it for me?

 

[trbomp5]

the same problem is happening on my 2001.
if my entire warranty is up, will they still replace it for me?

Dont know I'll find out tuesday

 

[Lil Freek]

score.. i await to find out.. my dealership is ANAL about everything... even when i had warranty they avoided that s*** like the plague.

 

[shane02pro5]

03 a/c control unit from salvage yard $40.00 where I just bought my 03 tranny. It's worth a shot anyway.