I sent a pull request with Nissan Leaf remote climate control support. I also wrote up a quick blog post with a photo of my gen 1 wakeup circuit: https://carrott.org/blog/archives/158-OVMS-Nissan-Leaf-Remote-Climate-Contro... I'll post a schematic of the circuit. Gen 2 doesn't require any hardware modifications. I added #define CMD_ClimateControl 43 // (ON or OFF) with argument 'on' and 'off'. I'm using temporary hack to enable climate control via the homelink buttons. If CMD_ClimateControl is suitable, could we add support in the Apps for a better button to toggle it on and off? I see there is a car_doors5bits.HVAC to signal that climate control is on, but I don't think that is exposed in the android interface. This would be a good candidate to provide feedback that the climate control is on.