Thoughts?? Climate control lighting

Hi TW,

I recently installed a new headunit in my 2005 Tacoma. Not my first install so everything went great. However, now whenever I turn on my headlights my A/C selector push button and the vent selector light doesn't come on. Now with one good hit to the passenger side of the panel and everything comes back on and stays on until the next day. I have been researching all night and can't make sense of it. There are two bulbs controlling these and they are on different sides of the panel and the other two bulbs never have any problem. Anyone have any ideas? Anyone have a wiring diagram for the panel or at least what the wires are that are plugged into the back? I have checked to ensure the harness is firmly plugged in but no change.


Thanks in advance,
Kevin

 

Sounds like you must have pushed a wire connector mostly off?

 

Mine used to do that. After hitting it for a few months, it stays on just fine

 

my fan speed light works sometimes and sometimes not. the other two knobs always work. well., except for that one time they didn't.

 

check for shorts or a semi-loose connector

 

These are instructions to put a 2012 unit into a 2011 and under, but it does show the pin configuration for the connector you have. Should be pin 3 (ILL+) and pin 9 (GND) on the A16 connector.

https://dl.dropboxusercontent.com/u/41091131/2012 CLIMATE CONTROL RETROFIT.pdf