B2484
DTC B2484
CIRCUIT DESCRIPTION
The navigation portion of the cellular and navigation antenna is connected to the vehicle communication interface module (VCIM) with an 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 B2484 GPS Sensor Circuit Open
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
