B2483

DTC B2483

Circuit Description
The navigation portion of the cellular and navigation antenna is connected to the vehicle communication interface module (VCIM) with a RG-174 coax cable. The VCIM polls the data from the antenna once every second.

Conditions for Running the DTC
^ The ignition must be in the RUN or ACC position.
^ The system voltage is at least 9.5 volts and no more than 15.5 volts.
^ All the above conditions are present for greater than 1 second.

Conditions for Setting the DTC
^ The VCIM does not detect a navigation signal.
^ All the above conditions are present for greater than 1 second.

Action Taken When the DTC Sets
^ The OnStar status LED turns red.
^ The OnStar Call Center cannot locate the vehicle.

Conditions for Clearing the DTC
^ The VCIM detects the presence of the cellular and navigation antenna.
^ A history DTC clears after 50 malfunction free ignition cycles.
^ The VCIM receives the clear DTC command from the scan tool.