AC Control Panel not working

Tiny
CHERRY107
  • MEMBER
  • 1999 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
Today when I tried to turn on the air conditioner by rotating the fan switch only the fan turned on and none of the little lights illuminated over the various functions on the AC control panel and all I get is warm air from the vents. The fan switch works fine but none of the other buttons function.

I have continuity through every fuse on the vehicle and I removed the dash panel and found all connections around the control panel to be secure.
Do you
have the same problem?
Yes
No
Friday, December 18th, 2009 AT 4:13 AM

25 Replies

Tiny
KHLOW2008
  • EXPERT
Hi Cherry107,

It sounds like you have a fuse out #13 7.5 amp here is a guide t help you test it with wiring diagrams of the climate control so you can see how it works and the fuse location are featured as well.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
Was this
answer
helpful?
Yes
No
+5
Saturday, December 19th, 2009 AT 10:41 PM
Tiny
ZANYJB
  • MEMBER
It was the fuse in my car FYI
Was this
answer
helpful?
Yes
No
+2
Monday, March 18th, 2019 AT 4:38 PM
Tiny
TUMMAS
  • MEMBER
  • 1999 HONDA ACCORD
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 91,000 MILES
Hi Folks,
> I have a Honda Accord 1999 EX Model. I face a strange problem. When i
> turn the car engine on usually the A/C and Heating panel light does not
> turn on. I try pushing mode button, temprature knowb, a/c button
> recirulation button but none of them have any effect and the lights do
> not turn on. It seems as if there is no power in the panel. However,
> The radio and cd player below it works fine.
> After I have driven for 20 minutes or so, the A/C panel ligts
> dramatically turn on and everything starts working great. These lights
> may go out again at any time and it kinda keeps eaking out between ON
> and Off stage at its own will.
>
> I have not been able to establish a pattern of these lights/ system
> turing on/off except that most of the time there is no light on the
> heating and cooling panel. My car does not have an automatic Climate
> Control System, so I ma discounting some setting issues in that.
>
> When I took it to Car Mechanic, he was not too sure but suggested that
> replacing the control unit right behind the Heating/Control Panel may
> help as there was power in the main line when he checked it. But he is
> not too sure.
>
> please let me known your professional advice.
>
Was this
answer
helpful?
Yes
No
+3
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
KHLOW2008
  • EXPERT
Hi tummas,

Symptoms indicate the control panel is faulty. The circuit inside the control panel has a bad connection somewhere and is intermittently turning on and off.

Your mechanic's suggestion of replacing the control panel is justified.
Was this
answer
helpful?
Yes
No
+6
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
TUMMAS
  • MEMBER
Thank you so much!
Was this
answer
helpful?
Yes
No
+1
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
KHLOW2008
  • EXPERT
You're welcome.

Have a nice day.
Was this
answer
helpful?
Yes
No
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
TUMMAS
  • MEMBER
When I started to look buying one such panel it is costing me 150-200 dollars. Can you help me know if panel can be repaired and if so please let me know any other alternatives available for me.
Was this
answer
helpful?
Yes
No
+1
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
BYPEREZ315
  • MEMBER
  • 1999 HONDA ACCORD
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
Hello, the AC button no longer lights up when I press it, however I do hear the compressor turn on but because the AC light isnt lighting on it will not allow the AC to actually start to cool. I checked all of the fuses both in the car and under the hood and they are fine. What can it be? Thanks
Was this
answer
helpful?
Yes
No
+2
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
KHLOW2008
  • EXPERT
Hi byperez315,

Does the copressor stop when the button is released after turning it on?
Was this
answer
helpful?
Yes
No
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
RIVERMIKERAT
  • MEMBER
Unless you know how to solder, no. You can try saving a few dollars by buying a used control panel from a junkyard.
Was this
answer
helpful?
Yes
No
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
BYPEREZ315
  • MEMBER
The compressor does not turn on because when we press the ac button it does not light up at all. None of the buttons light up.
Was this
answer
helpful?
Yes
No
+1
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
KHLOW2008
  • EXPERT
If the control panel is not lighting up, most likely it is faulty. This problem is quite common with the year model.

Would you be able tpo perform diagnostics to test the wirings?
Was this
answer
helpful?
Yes
No
+3
Monday, March 18th, 2019 AT 4:38 PM (Merged)
Tiny
MD062003
  • MEMBER
  • 1999 HONDA ACCORD
Air Conditioning problem
1999 Honda Accord 4 cyl Front Wheel Drive Automatic 129K miles

Hi, My car's temperature control panel sometimes just shuts down. The fan still runs but only blows HOT air. The lights on the panel buttons, the air conditioning and the vent all become inoperable. This happens without rhyme or reason. Sometimes everything will come back on immediately if I shut off the temperature control panel (ie totally turn off the fan). Sometimes it takes a lot longer to come back on. Just took the car to the dealership where they "couldn't figure out the problem". They told me to hit under the glove compartment next time it happens I guess in an attempt to jiggle the blower fan. Just doesn't sound like great advice. Any other owners with this problem? Texas is about to get hot and I'd love to resolve the issue! Thanks, Ginine
Was this
answer
helpful?
Yes
No
Monday, March 18th, 2019 AT 4:39 PM (Merged)
Tiny
ONEACCORD99
  • MEMBER
I have the same problem; just posted a similar question. Unfortunately, I can't provide any answers. I can say that in conjunction with this issue, my 99 hond accord also wouldn't start for quite a few attempts, particularly after restarting after a short trip in a store, pumping gas, etc. Or when it's hot out. It seems electrical and perhaps has to do with fuses, but I can't be sure. I'm afraid to take it to the dealership because I've been scammed out of $700 with nothing repaired yet. I can't afford to hand over any more money without a fix, especially in our current economy. If anyone has had any similar issues and can help to resolve the problems, please post.

Thanks!
Was this
answer
helpful?
Yes
No
Monday, March 18th, 2019 AT 4:39 PM (Merged)
Tiny
KHLOW2008
  • EXPERT
Hi md062003,

The control panel is acting up. If you know how to tinker with electronic circuits, take it apart and check for some poor soldering points or leaking capicators.

If not, you might have to replace the unit.
Was this
answer
helpful?
Yes
No
+2
Monday, March 18th, 2019 AT 4:39 PM (Merged)
Tiny
SAYHONKMON
  • MEMBER
  • 1999 HONDA ACCORD
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 102,000 MILES
My a/c control panel has no power when turning on the a/c switch or the recirculation switch. This problem began as an intermittent problem, but now is a solid no power problem. The blower switch works.
I have checked the fuses and all are ok. Is there a relay that controls power to the switch panel?
Thanks.
This is a 99 honda accord dx, 102,000 miles.
Was this
answer
helpful?
Yes
No
+2
Monday, March 18th, 2019 AT 4:39 PM (Merged)
Tiny
SGRIEK
  • MEMBER
The ac dash controls don't seem to work. The blower comes on but no ac or lights. The dealer says I just need a new panel. He also says that the reason the car overheated is because of the ac dash controls failing. This seems very odd but I'm going to buy a used one and see if the ac and radiator fan start to work again. Did you find a fix?
99 EX 150,000 miles
Was this
answer
helpful?
Yes
No
+1
Monday, March 18th, 2019 AT 4:39 PM (Merged)
Tiny
KFOSS23
  • MEMBER
  • 1999 HONDA ACCORD
Air Conditioning problem
1999 Honda Accord 4 cyl Front Wheel Drive Automatic 180k miles

ac panel goes out intermittedly. Blower speed works. Temp knob makes no diff. When not working all lights above buttons are not on.
Was this
answer
helpful?
Yes
No
+1
Monday, March 18th, 2019 AT 4:39 PM (Merged)
Tiny
LEGITIMATE007
  • EXPERT
Hi, I believe your bcm(body control module) is acting up because of a few corroded wires. It will need to be looked at. Also the dimmer switch may need to be checked too
Was this
answer
helpful?
Yes
No
+1
Monday, March 18th, 2019 AT 4:39 PM (Merged)
Tiny
STEPHANIEWAINWRIGHT
  • MEMBER
  • 1998 HONDA ACCORD
1998 Honda Accord 6 cyl Front Wheel Drive Automatic

my ac contol is stuck on defrost and will not switch back. The mode says that its changing but its not.
Was this
answer
helpful?
Yes
No
Monday, March 18th, 2019 AT 4:39 PM (Merged)

Please login or register to post a reply.

Sponsored links