During remote control, we found that the car is not started, but actually the car is started. NO CONNECTION. Possible reasons: Maybe not connect with the device well, or the vehicle doesn't offer ignition power for device. Solution for the customer's vehicle: Vehicle: made in 2009. Reason for this vehicle: As this vehicles should be can protocol, if use gateway, ignition signal, it is wrong, so no connection for the vehicle. And aslo when do self-diagnostic, no ignition signal. Solution from the customer: do via 166 gateway, manually enter vin number, then it can do the vehilce succesfully. Make sure your ignition is on, then manually enter vin number. Why customer think his car is can bus protocol: there is an interface which seems like use CAN protol. For vin number, the vehicle should have an obd2 interface, but his car doesn't have it. He also has dismantle the insulating sleeve outside the wire of diagnostic interface, then found cable 5, cable 4 and 5 are brown, cable 6 is gray with white stripe, cable 14 is grey, cable 16 is red. So he judges that it is can bus protocol, there is no ignition singal in these cables.