When Monitored And Set Conditions
WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
When Monitored:
This diagnostic runs one time during an ignition cycle when the following conditions are met:
- The Bus is awake
- Every Passive Entry or Keyless Go action.
- Battery voltage between 10.0 - 16.0 volts.
Set Conditions:
- When the Antenna 4 Signal Circuit is shorted to Battery. If another Antenna has a Short to Ground, a General Electrical Failure or Open DTC, both Antennas will set this Short to Battery DTC.
Default Actions:
- Limitation of the Passive functionality (Keyless Go, Passive entry, etc.).
- EVIC message: "Service Keyless System".
| Possible Causes |
|---|
| ANOTHER ANTENNA SIGNAL CIRCUIT MAY BE SHORTED TO GROUND, GENERAL FAILURE OR OPEN DTC |
| PASSIVE ENTRY ANTENNA 4 SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| PASSIVE ENTRY ANTENNA 4 RETURN CIRCUIT SHORTED TO VOLTAGE |
| RADIO FREQUENCY HUB (RF HUB) MODULE |