Sorry I know this has been answered before because I have read it before but the search function does not seem to be working yet. I disconnected my battery to put in my new HU and now the AC comes on again when I put it to defrost and I can't seem to remember how to disable it. Thanks for you help

John

 

To deactivate automatic a/c feature on a 2002-2003 S2000:

1) Turn the ignition switch "on," but dont start the car.
2) Turn fan speed off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob to all the way to the left (panel position).
5) Turn the ignitions switch "off."
6) Hold down both air recirculation button and a/c button while turning the ignition switch "on." Nothing lights up initially, keep waiting. The orange air recirculation indicator on the button will start flashing.
7) Continue holding both buttons until the orange air recirculation indicator stops flashing, then let go.

To reactivate automatic a/c feature:

1) Turn vehicle off.
2) Turn fan knob off.
3) Turn temperature knob all the way to the left (blue area).
4) Turn vent knob all the way to the right (defrost position).
5) Hold down both air recirculation button and a/c button while starting car.
6) Continue holding for 7 seconds until air recirculation button stops flashing.
7) After the 7 seconds described in step 6, the recirculation button will start to flash. Continue to hold the button for another 7 seconds. After this, the a/c light will turn to green and it's finished!

 

Thanks, I will print it this time
John