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.
DTC DESCRIPTORs
This diagnostic procedure supports the following DTCs:
- DTC B2483 GPS Sensor Circuit Low
- DTC B2484 GPS Sensor Circuit Open
This vehicle has DTCs which include DTC Symptoms. For more information on DTC Symptoms, refer to DTC Symptom Description in Vehicle DTC Information. DTC Symptom Description
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(R) status LED turns red.
- The OnStar(R) 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.
TEST
