Remote RF (Keyless) Entry
REMOTE RF (KEYLESS) ENTRY
The X5 keyless entry system's operation is carried over from the E38/E39. However, the FZV key has undergone considerable redesign
- The remote key receiver is part of the antenna amplifier and is installed in the center of the top section of the tailgate.
The receiver produces a digital signal based on the transmitter command and sends it to the GM for processing
The GM then carries out all remote lock system, window/sunroof convenience closing features and DWA arming/disarming functions.
- The frequency at which the key transmits the radio signal to the antenna amplifier is 315 MHz.
- The system is also used to convey the key identification number being used to lock/unlock the vehicle. This is a requirement of the Key Memory feature covered further on in this manual.