BMW FXX ATM Emulator Operating manual

BMW FXX ATM emulator
User and Installation Manual
2017

Designation
"BMW FXX ATM emulator" module designed for use in BMW F-Series cars, when replacing or
installing head unit HU EVO unequipped with built-in GPS receiver, without the need to install ATM ECU.
The module also provides the following functions:
• activation of the navigation
• «Video in motion»
• protocol matching for correct functioning of Sport Displays
• gyro sensor protocol matching for correct functioning of navigation system
• KAFAS1 and HU EVO protocol matching
Technical description
The appearance of the module shown in Fig. 1. The module contains 16 pin connector «System»
for connection to the vehicle systems, FAKRA type connector «GPS» for connection of external GPS
antenna, a set of eight (DIP SWITCH type) switches S1 to enable/disable available module features, two
led indicators “CAN”and “ETH” to indicate various modes of operation, USB connector for firmware
update and module diagnostic.
Connector «System» has the following signals:
•"CAN1H" (yellow), "CAN1L" (blue) for connection to the CAN bus from vehicle side
•“CAN2H” (yellow/black), “CAN2L” (blue/black) for connection to the CAN bus from HU side
•“OABRP”, “OABRN” for connection to the HU OABR bus
output “RAD ON” (white/red), for replacement of the head unit RAD ON signal
input “+12V” (red), module power “plus” wire
input “GND” (black), module power “ground” wire
Connector «System» pinout shown in Figure 2, switches features given in Table 1.
Figure 1. Module appearance
1
8
9
16
S1
CAN
ETH

Figure 2. Connector «System» pinout
Table 1, switches features
Switch
1
2
3
4
5
On
Navi activation
On
Video in motion
On
Sport indicators
protocols
conversion
On
KAFAS1 protocols
conversion
On
Gyro sensor
protocol
conversion
On
Off
Navi activation
Off
Video in motion
Off
Sport indicators
protocols
conversion
Off
KAFAS1 protocols
conversion
Off
Gyro sensor
protocol
conversion
Off
Connections
Module should be connected to the gap of CAN bus between head unit and car, and to the OABR
interface of head unit, according to schematic shown in Fig.3, using the supplied cable (Figure 4). Cable
consists 16-pin socket for connecting to the module «System» connector, 20-pin socket for connecting to
the OABR connector of head unit (position A42*3B Figure 6.), and wires for connect to CAN bus and
power. Cable diagram shown in Figure 5. Appearance and head unit connector A42*3B pins numbering
shown in Figure 7.
Module operation
Attention: When first connect and powered, module binds to the car and can not be used with
any other. Not bounded or installed to another car module will not perform specified functions.
When ignition turn on, or connected over USB cable, module will displays their status via “CAN”
and “ETH”indicators. In the normal state indicator “CAN” indicates CAN bus activity, and should blink at
a frequency of about 10Hz. Indicator “ETH”should produce a short single flashes with a frequency of 1Hz.
If there is no indication on the “CAN” indicator, CAN wires should be verified for the correctness and
reliability connection to the CAN buses from the car and head unit. If there is no indication on the “ETH”
indicator, OABR wires should be verified for the correctness and reliability connection to the OABR bus of
head unit.
When module connected only over USB cable to the computer, it goes into Boot mode and
provides the ability to download firmware. In Boot mode both LEDs blink alternately by double flashes
series.
In the normal state module emulates ATM ECU, receives the signal from the built-in GPS receiver
and transmits it to the head unit. Additional features can be set using switches.

Figure 3. Module connection schematic diagram
Figure 4. Cable appearance

Figure 5. Cable schematic diagram.
Figure 6. Head unit connectors appearance an locations
Figure 7. Head unit OABR connector appearance and pins numbering