The SW cannot detect the GPS antenna.
Examine the GPS antenna. Disconnect the antenna cables from the antenna and examine the connectors visually. Then check the continuity in the disconnected GPS antenna cables using a multimeter.
What you'll see
No driver-visible symptom recorded.
System reaction
The positioning information on the following functions does not work. - Geofence - Positioning - Vehicle and driver data - Vehicle alarm - Active prediction - GPS on CAN
Diagnostic depth
No current can be measured in the antenna loop. The DTC becomes active when the unit don’t have contact with the GPS-antenna for more than 25s. The DTC becomes inactive when the unit has contact with GPS-antenna.
The GPS antenna is disconnected or loose. The GPS antenna cable or connector is broken. The GSM/GPS antenna is broken. A non compatible GPS antenna is connected (shall be a 3.3V active antenna). The GPS antenna connector in C300 is defect.