I recently installed a grid charger in my HCH1. When I got to the part where I needed to power up my fan, I quickly became confused by the 4 wires going to the fan. In my fit of rage, I applied 12v to any and every wire I could find, including the ground and PWM wires going back to the ECU. Now I'm in the market for a functional ECU... Does anyone know which parts are compatible with 1K000-PZA-A04 (2005 5-speed)? I've seen some ECU's from others years on ebay for pretty cheap, but am hesitant to buy one that may not work. Does anyone have a schematic for the ECU itself and know which transistor I fried? Any help would be appreciated.