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hch1 ecu mcm pwm

  1. Honda Insight Forum 1st-Gen Discussion
    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...