Remote receiver
The remote control receiver is located in the CIM. The receiver is shut down when vehicle speed exceeds 5 km/h in order to avoid being affected by the tire pressure monitoring system. The receiver is also shut down in "transport mode", i.e. when the transport fuse in the UEC is removed so that the car shall have the lowest possible standing current consumption. BCM listens to the bus messages for depressed remote control buttons from the CIM till the remote control/starter key is put in the ignition and transponder approval. The way in which a button on the remote control is pressed is identified by the CIM in accordance with the following
Scheme 711
Scheme 712
- Single press less than 2s in duration
- Double press when pressed twice within a period of 5s
- Continuous press lasting longer than 2s
When the remote control is used, information is transferred regarding the remote control battery status. If the level from the same remote is too low 10 consecutive times, the CIM will send a message out on the bus. A weak battery is indicated in the SID.
Scheme 713
Key programming is carried out using the diagnostic tool. All keys must be available for programming. Both transponder and remote control are programmed in one sequence. 5 keys can be programmed. The number of programmed keys is displayed in SID if the button for boot lid opening is pressed when the ignition key is in the ON position. The car must also be stationary. For further information see KEY PROGRAMMING
Scheme 714
With TSL locking the driver's door must be closed. This also applies for US/CA which does not have the TSL function. Other doors lock and the car is then locked when these are closed. Locking or unlocking using the remote control can be confirmed with an acoustic signal and with the direction indicators (depending on market and selectable using the diagnostic tool). If the locking or unlocking does not work for any reason then no confirmation will be given. After locking with the remote control, the door buttons for the central locking system and the boot, as well as the switch in the boot lid handle, are disconnected.