The SW cannot detect the GSM antenna.
â–¶ How to fix
Examine the GSM antenna. Disconnect the antenna cables from the antenna and examine the connectors visually. Then check the continuity in the disconnected GSM antenna cables using a multimeter.
What you'll see
No driver-visible symptom recorded.
System reaction
The GSM/GPRS communication to FMP does not work.
Diagnostic depth
Detection
Antenna status read from GSM module is invalid. The DTC becomes active when antenna status is invalid for more than 25s. The DTC becomes inactive when the antenna status is valid.
Possible cause
The GSM antenna is disconnected or loose. The GSM antenna cable or connector is broken. The GSM/GPS antenna is broken. The GSM antenna connector in C300 is defect.