FAQs Brief Specs Question What should I do if a communication error occurs? Answer Features Follow the steps below to identify the problem: (1) Check if the ignition is ON. (2) Check if the VCI is securely plugged into the vehicle’s DLC port. What's In The Box? (3) Turn the ignition off. Then, turn it on again after 10 seconds and continue the operation. (4) Check if the vehicle’s control module is defective. Comp Chart FAQs