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Disabling automatic AC on defrost

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  #1  
Old 12-07-2008, 08:00 PM
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Disabling automatic AC on defrost

Ok. There have been some interest in disabling the automatic and forced use of AC while in defrost. I have done this, without cutting any wires, and you can still press the AC button to turn on the AC while in defrost.

I have moved the link to n external website, as i am taking my hand at web page writing:

see the link in my signature line.
 

Last edited by Roger's Fit; 08-15-2010 at 09:35 PM. Reason: External Web Page
  #2  
Old 12-07-2008, 08:04 PM
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Thanks. Glad somebody was the guinea pig and experimented with pulling plugs. So do you have any idea how to plug that back in, just in case you want to revert back to the way it was?
 
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Old 12-07-2008, 08:07 PM
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Originally Posted by Olyar15
Thanks. Glad somebody was the guinea pig and experimented with pulling plugs. So do you have any idea how to plug that back in, just in case you want to revert back to the way it was?
You can just plug it back in, although it will be difficult. I tried for 5 minutes and gave up. Long needle nose pliers will be needed. If you take apart more of the dash, it would be no problem.
 
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Old 12-07-2008, 09:04 PM
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Excellent! I will be doing that real soon.

Thanks Roger.
 
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Old 12-07-2008, 09:08 PM
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One more mod to do!!.. Thanks!!
 
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Old 12-07-2008, 09:15 PM
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This thread and the one for "Unlock my doors please" should be stickies.
 
  #7  
Old 12-07-2008, 10:42 PM
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I see a screw holding that piece in


Ahh, I was going the wrong way, you have to push down on that little lip on the connector.

DONE!

Yay! No more A/C gas wasting with my defroster.

Thanks!
 

Last edited by SCBarren; 12-07-2008 at 11:03 PM.
  #8  
Old 12-07-2008, 11:23 PM
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Thanks!!!!
 
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Old 12-08-2008, 08:14 AM
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I know an even easier way.

1. Turn key to "on" (position before crank).
2. Move fan knob to "off".
3. Temp knob full blue (all the way to the left).
4. Position knob full left (arrow pointing to face only.
5. Turn key off.
6. Press the AC button and hold it down.
7. Turn key back to the "on" position and wait for 7 seconds while still holding the AC button down.
8. Release AC button and start the car.

Voila, now the AC doesn't come on automatically in defrost mode! You can however, turn it on if you're so inclined.
 
  #10  
Old 12-08-2008, 08:23 AM
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is this for the 2009 model ony? is the others the same?
 
  #11  
Old 12-08-2008, 08:27 AM
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My method works on many Hondas. Sometimes they even place this procedure in the owner's manual, but most of the time they leave it out even though it works for that vehicle.
 
  #12  
Old 12-08-2008, 09:53 AM
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Originally Posted by umop-apisdn
My method works on many Hondas. Sometimes they even place this procedure in the owner's manual, but most of the time they leave it out even though it works for that vehicle.
Thanks, except that it does not work for the GE Fit, and neither does the other "procedural" fix I've seen on the forum for this issue.

It looks like the "disconnect" method is the only way to conclusively override the a/c compressor while on defrost, at this time, anyway.
 
  #13  
Old 12-08-2008, 11:06 AM
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I agree completely. The umop-apisdn method doesn't work with the 09 Fit.
 
  #14  
Old 12-08-2008, 11:30 AM
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Originally Posted by Roger's Fit
Ok. There have been some interest in disabling the automatic and forced use of AC while in defrost. I have done this, without cutting any wires, and you can still press the AC button to turn on the AC while in defrost.
Great find! +reps.


Modified Fog lights? What kind of mod did you do?
 
  #15  
Old 12-08-2008, 11:55 AM
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Question...

Originally Posted by umop-apisdn
I know an even easier way.

1. Turn key to "on" (position before crank).
2. Move fan knob to "off".
3. Temp knob full blue (all the way to the left).
4. Position knob full left (arrow pointing to face only.
5. Turn key off.
6. Press the AC button and hold it down.
7. Turn key back to the "on" position and wait for 7 seconds while still holding the AC button down.
8. Release AC button and start the car.

Voila, now the AC doesn't come on automatically in defrost mode! You can however, turn it on if you're so inclined.
Does this procedure have to be repeated everytime you start the vehicle - or is it a one time procedure which deactivates the AC compressor when using defrost mode?
 
  #16  
Old 12-08-2008, 12:17 PM
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Originally Posted by umop-apisdn
I know an even easier way.

1. Turn key to "on" (position before crank).
2. Move fan knob to "off".
3. Temp knob full blue (all the way to the left).
4. Position knob full left (arrow pointing to face only.
5. Turn key off.
6. Press the AC button and hold it down.
7. Turn key back to the "on" position and wait for 7 seconds while still holding the AC button down.
8. Release AC button and start the car.

Voila, now the AC doesn't come on automatically in defrost mode! You can however, turn it on if you're so inclined.
thanks but I've tried this many times, all variations of it and couldn't get it to work.
 
  #17  
Old 12-08-2008, 12:36 PM
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thanks OP! first the foglight mod, now this... well-deserved reps!
 
  #18  
Old 12-08-2008, 12:49 PM
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This may be slightly off topic but I have a question.

I have had my Fit now for 11k miles and I only recently noticed this quirk with the condenser fan.
Weather the motor is cold or hot, with or without the AC; I turn on the inside blower and I notice the condenser fan comes on and turns off. This repeats through out my driving.
I'm pretty sure I have noticed this without defroster selected but I will double check after work.
I'm guessing this is the condenser fan because this only happens when I turn on the blower.

Either way, is this normal in the Fit?
I think this could lead to premature fan failure.
 

Last edited by Nabisco; 12-08-2008 at 12:52 PM.
  #19  
Old 12-08-2008, 01:01 PM
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Odd... I did the procedure a few times just to verify that it does work on my GE. I had my ebrake on and the air slider was on outside air, maybe that matters. I'll go check.
 
  #20  
Old 12-08-2008, 11:22 PM
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Silly me, I thought the fact that the light on the AC switch turning off meant that the procedure worked. The compressor still cycles regardless whether the switch is on or not.
 


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