Blower not working on high fan speed

[Aggiesrok]

Doubt there are any additional codes that would show up on a generic scan since the EATC can run diagnostics and return codes.
When you checked the fuses did you also check to see if they were getting power?

No I just checked that they were not blown. I'll check that next. The supposedly correct blower resistor will be here tomorrow. I replaced the pigtail when I replaced the resistor and they both had a small slightly melted area on them. The new pigtail came with crimp-ons, I may go back and solder those instead.

 

[stamp11127]

What do you think causes the melted area on the connection?

 

[Aggiesrok]

What do you think causes the melted area on the connection?

Not sure. It's wasn't very bad, seemed to be a short because it was on resistor and connector on the inside.

 

[Aggiesrok]

 

[thesavo]

Looks like with EATC they call it a blower speed controller model.
This is from 2013 but is also the same on 2011 diagrams.

Sent from my SM-N910V using Tapatalk

 

[Aggiesrok]

Looking at the diagram, it's the yellow-blue wire that was a little melted. I should check it from the motor speed control to the blower motor.

 

[thesavo]

Here is the top portion that was cut off.

Sent from my SM-N910V using Tapatalk

 

[Aggiesrok]

Thanks again for the diagrams.
Ok so a little progress - got the correct speed control module (other eatc w/ digital settings) and the fan works on all speeds, but still only hot air. Reset EATC and got no codes.

 

[Aggiesrok]

Hot air everywhere. The AC clutch is not engaging. The air gap is .020, so I should unplug at the clutch and check for voltage with key on, AC on? If that's good then I should replace the AC clutch?

 

[stamp11127]

Yes check for voltage at the plug and also the amount of resistance in the coil for the ac clutch.
It is a roll of the dice with replacing just the clutch. Usually they fail with many hours of run time. You risk damaging the compressor seal during the change over.