Complete HCHII grid charger install instructions including how to get to the IMA switch, where to connect to the battery, how to remove the battery and how to control the fan for cooling during charging:
The civics battery cooling air depends on the IMA cover being in place and sealed.
A trick to charge with IMA cover off is shown here:
http://99mpg.com/Projectcars/gridcha...ingthetestpr3/
Basically you use a small box with computer fan to cover the vent in the rear window well, and draw air up through the pack during open IMA box charging