Vehicles from model year 2009
The following items are added to the FFBH remote controls installed on vehicles prior to model year 2009:
- FFBH with updated software and calibration
- Remote control FFBH
- Remote Control Receiver FFBH
- Receiver Power, Communications, and Antenna Harnesses
- Antenna matcher cable harness for connecting the receiver's coaxial cable to an existing DAB antenna in the side window
Remote control FFBH
| Pos. | spare part no | Name |
| 1 | - | Power button |
| 2 | - | Off button |
| 3 | - | Operation LED |
| 4 | - | Antenna |
The remote control allows the driver to remotely activate the FFBH without getting into the car. The remote control has a range of at least 100 m in an empty space, although this distance may decrease depending on the location of such "interference", like buildings. The remote control is powered by a 3.3V CR1/3N replaceable battery that can be accessed by removing the cover on the back of the remote control. The service life of the remote control is approximately 300 FFBH cycles. One cycle is a button press on the remote, followed by a 30-minute lit period with a flashing feedback indicator.
There is an LED on the remote control to indicate the active state of the FFBH. If you press the 'ON' button on the remote control for more than 2 seconds, the indicator will be on for 2 seconds. After the 2 second period, the LED will turn on for 50 ms every 2 seconds for a maximum of 30 minutes of FFBH operation. The LED will stop flashing when the 'OFF' button is pressed or after the 30 minute timer period has elapsed.
Operation of the indicator on the remote control
To alert the driver to various states of the FFBH remote control system, the LED illuminates in various modes:
- Lights up green for 2 seconds after pressing the power button to indicate that the receiver has successfully received the activation request from the remote control. Now the FFBH can start to work, provided that the fuel level, battery voltage and coolant temperature are correct.
- Flashes green for 50ms every 2 seconds to indicate that the FFBH may be active.
- Lights up red for 2 seconds after pressing the power button to indicate that the receiver has successfully received the power off request from the remote control. With this, FFBH should start working.
- Flashes green or red for 2 seconds when the ON or OFF button is pressed to indicate that no signal has been received by the FFBH receiver.
- Lights up orange before changing to green or red to indicate low battery voltage in the remote control.
- Flashes orange for 5 seconds to indicate that no signal has been received by the FFBH and the battery in the remote control needs to be replaced.
Pairing Remote Controls
Each remote control must be paired with the receiver in order to communicate. Each remote control has a unique remote number that is stored in the receiver. The receiver can store up to 3 remote control ID numbers. If a fourth remote is paired with the receiver, the receiver will replace the first paired number in its memory with the number for the fourth remote. As a result, the first matched remote will already be inconsistent and will not be recognized by the receiver.
The following procedure describes the negotiation process:
- Remove the FA5 fuse from the rear electrical box (RJB).
- Wait at least 5 seconds
- Replace fuse FA5 in RJB
- Within 5 seconds after changing the fuse (and restore power to the receiver) press and hold the OFF button on the remote control
- Confirmation of successful pairing is shown by turning on the indicator on the remote control in red for 2 seconds
NOTE: The negotiation process is performed by an FFBH receiver that has been powered off and then restored. Using a fuse is the easiest way, but this can be done by disconnecting the battery or removing the wiring harness connector from the receiver unit.
Receiver
The receiver is located on the left side of the luggage compartment. The receiver is located on an integral bracket, which, in turn, is attached to the bracket of the audio system, on which the High Definition radio receiver is located (HD).
The receiver is connected to the antenna on the left window with a coaxial cable. The radio frequency signals from the remote control are received by the antenna and transmitted through the antenna matching unit and coaxial cable to the receiver. The receiver processes the signals and transmits the corresponding messages to the FFBH on a dedicated bus.
Antenna and Antenna Matching Unit
Antenna matching block:
The FFBH antenna is located on the left rear window and uses the same antenna elements used by the digital audio broadcasting system (DAB).
The antenna matching unit is located above the DAB antenna, behind the headlining. The jumper wire from this unit is connected directly to the stud on the antenna located on the glass. The receiver is connected to the matching unit with a coaxial cable.
An antenna located on the glass receives RF signals from the remote control and transmits them through a matching box and coaxial cable to the FFBH receiver.
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