CUSTOMER CONCERN The check-engine light is on with DTC U1008 for lost communication with the radiator-shutter Active Air Flap. CAUSE Circuit testing specified approximately 2.5 volts on terminal 3 White and terminal 4 Brown C-CAN wires, battery voltage at terminal 1 Red, key-on battery voltage at terminal 2 Pink, and ground at terminal 6 Black. The confirmed failure was the Active Air Flap assembly. CORRECTION Remove and replace the Active Air Flap assembly, then verify C-CAN