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SIEMENS VDO Automotive AG
General description of the RF transmitter
The RF (radio frequency) remote control system consists of a RF transmitter and a RF
receiver mounted within the control unit.
The described system is a radio-frequency remote control for central doors locking /
unlocking, trunk release and Panic activity of an automotive vehicle.
System Operation:
Remote keyless entry function is provided by the RF system of the Rx and the RKE
transmitter. The operation of these functions are as follows:
Host
BCM
Remote keyless Entry:
The RKE transmitter operate at 315 MHz for China & Taiwan. ASK modulated data signal
is transmitted to the Rx which receives the encrypted RF signal. Then, it send the data of
the signal to corresponding the host Body control module through the communication line.
This transmitter is used to transmit an information for locking or unlocking of the vehicle by
an unidirectional RF transmission line for normal remote operation by pressing a button.
In general the following functions are provided:
Lock the car
-
Unlock the car
-
Unlock the trunk of the car
-
-
Panic
I:\POSTZULA\NISSAN\H61B_KEYFOB\Technische_Doku\Func_Nissan_H61B_RKE.doc
Identifier
RF Key
Start code
RF
emission
SRx
receiver
Communication
Line
SV C BC P2 RF
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