AFTERMARKET TELEMATICS SYSTEM AND METHOD FOR CONTROLLING A COMMUNICATIVELY PAIRED DEVICE

1 . A method for controlling a communicatively paired device for use with a vehicle, the method comprising:

detecting a first power state of the vehicle using a vehicle communication interface (VCI) that is communicatively coupled to a communication bus on the vehicle;

transmitting a wireless signal corresponding to the first power state from the VCI to a communicatively paired device; and

altering a second power state of the communicatively paired device to correspond with the first power state.

2 . The method of claim 1 , wherein the detecting step comprises detection by the VCI of generic message traffic on the communication bus.

3 . The method of claim 1 , wherein the detecting step comprises detection by the VCI of a specific message communicated on the communication bus.

4 . The method of claim 3 , wherein detection by the VCI of the specific message comprises detection by the VCI of an awaken command sent by a body control module of the vehicle.

5 . The method of claim 3 , wherein detection by the VCI of the specific message comprises detection by the VCI of a message sent by a powertrain module of the vehicle relating to a transmission state of the vehicle.

6 . The method of claim 5 , wherein the detection by the VCI of the message sent by the powertrain module comprises detection by the VCI of the message indicating that the transmission state is one of a park, reverse, neutral, drive, and low.

7 . The method of claim 1 , wherein the VCI is electrically connected to an assembly line diagnostic link (“ALDL”) port on the vehicle, wherein the ALDL port only supplies electric power to the VCI when the vehicle is on, and wherein the detecting step comprises detection by the VCI of electrical power being supplied by the ALDL port.

8 . The method of claim 7 , wherein the VCI and the communicatively paired device are configured to be communicatively paired with one another when the VCI and the communicatively paired device are each connected to the vehicle and each are powered on, and wherein the transmitting step comprises discontinuation of the communicative pairing between the VCI and the communicatively paired device.

9 . The method of claim 1 , wherein the altering step comprises turning the communicatively paired device to and on-mode when the vehicle is powered on and turning the communicatively paired device to a standby-mode when the vehicle is powered off

10 . A method for controlling a telematics unit for use with a vehicle, the method comprising:

detecting a first power state of the vehicle using a first method;

detecting the first power state of the vehicle using a VCI that is communicatively coupled to a communication bus on the vehicle;

transmitting a wireless signal corresponding to the first power state from the VCI to an ATU that is electrically connected to the vehicle; and

altering a second power state of the ATU to correspond with the first power state when the VCI corroborates the first method.

11 . The method of claim 10 , wherein the step of detecting the first power state of the vehicle using the first method comprises monitoring with the ATU a battery connected to the vehicle for a fluctuation in voltage and determining the first power state of the vehicle based on the fluctuation.

12 . The method of claim 10 , wherein the step of detecting the first power state of the vehicle using the VCI comprises detection by the VCI of generic message traffic on the communication bus.

13 . The method of claim 10 , wherein the step of detecting the first power state of the vehicle using the VCI comprises detection by the VCI of a specific message communicated on the communication bus.

14 . The method of claim 13 , wherein detection by the VCI of the specific message comprises detection by the VCI of an awaken command sent by a body control module of the vehicle.

15 . The method of claim 13 , wherein detection by the VCI of the specific message comprises detection by the VCI of a message sent by a powertrain module of the vehicle relating to a transmission state of the vehicle.

16 . The method of claim 15 , wherein detection by the VCI of the message by the powertrain module comprises detection by the VCI of the message indicating that the transmission state is one of a park, reverse, neutral, drive, and low.

17 . The method of claim 10 , wherein the VCI is electrically connected to an ALDL port on the vehicle, wherein the ALDL port only supplies electric power to the VCI when the vehicle is on, and wherein the step of detecting the first power state using the VCI comprises detection by the VCI of electrical power being supplied by the ALDL port.

18 . The method of claim 17 , wherein the VCI and the ATU are configured to be communicatively paired with one another when the VCI and the ATU are each connected to the vehicle and each are powered on, and wherein the transmitting step comprises discontinuation of the communicative pairing between the VCI and the ATU.

19 . The method of claim 10 , wherein the altering step comprises turning the ATU to an on-mode when the vehicle is powered on and turning the ATU to a standby-mode when the vehicle is powered off.

20 . An aftermarket telematics system for use with a vehicle, the aftermarket telematics system comprising:

an aftermarket telematics unit (“ATU”) configured for electrical connection to the vehicle; and

a vehicle communication interface (“VCI”) configured for communicative connection to a communication bus on the vehicle, the VCI further configured to be wirelessly communicatively coupled to the ATU;

wherein the VCI is further configured to detect a first power state of the vehicle when the VCI is communicatively connected to the communication bus and to wirelessly transmit a signal to the ATU corresponding to the first power state, and wherein the ATU is further configured to alter a second power state of the ATU in a manner that corresponds with the signal.