I recently woke up to a dead car and remembered that my climate control lights would stay illuminated all the time. Even when the key is out of the ignition, the climate control lights will stay lit if the buttons are pushed in. The only way to make the lights go away, is to make it that none of the buttons are pushed in.

Anyone know the problem because of this? I am planning on doing a climate control swap whenever I get the chance to but it would be nice to diagnose this in the mean time.

 

Bump, any input?

 

is it the stock climate control unit? is there aftermarket wiring? also is any other light on too? or just the climate control?

 

Yes

There is wiring for an amplifier and subwoofer.

Nope, just the climate control lights. You know, the little green ones under the buttons.

 

Come ON Honda-Tech.. Of course I searched and only found one thread about this problem from six years ago.

 

If you have the blower on, will the blower stay blowing too? I would imagine maybe there is some non-stock wiring and some one wired the climate control power to something that is always on, instead of off when the ignition is off. Look at the fuses... look normal, or anything else 'extra' that's not labeled?

I would pull fuses until you see the lights go off... is that the fuse for the climate control, or something else? If it's something else, well, some one is powering your climate control (probably ONLY the climate control + mystery item, I bet the blower turns off without the car on, it's on it's own circuit/fuse) with something else.

 

I'll definitely take that into consideration and look into it when the weather looks up. However the one thread I did find, there were quite a few people having the same problems.

Also, I can't exactly remember but I'm pretty sure the rear defrost light near the cluster stayed on with the key off. Or maybe I still had the key in, I'll have to double check.

 

The rear defrost light does stay on with the key out of the ignition.

 

Bump

 

Awesome.

 

I had this issue on my 97 accord LX. In my case it turned out to be the radiator fan control module (located behind the glove compartment). This module is responsible for keeping the radiator fan on when the car is turned off... and, as such, has power applied even when the ignition is off. In my case the failure caused voltage to backfeed to the heater control circuit.

To test, unplug this module... if the lights go out then this is your problem. I looked up the part number on ebay and found a replacement.