Installing Bluetooth module into SECU-3T ECU
Installation of Bluetooth unit into SECU-3T ECU will allow you to connect to it via Bluetooth (e.g. from your Android device).
In particular, this will allow to use Android Manager for SECU-3 on any Android device which supports Bluetooth technology data transfer.
So, you have SECU-3t revA or revBU4 (or later) and Bluetooth unit. We disassemble SECU-3T unit and take out PCB.
SECU-3T PCB of revision revA or revBU4 (or later) has soldering holes specially designed for Bluetooth installation. Combine pins sticking out from Bluetooth with holes on the SECU-3T PCB. Solder all pins.
As a result we will obtain following (as shown on the picture):
To have ability to communicate with SECU-3 ECU either via cable (USB) or via Bluetooth it is necessary do following. On the SECU-3T PCB cut one jumper and install a diode (diode is sold as a unit together with Bluetooth) as shown on the following picture:
Picture marked as “1” shows which jumper to cut. Picture marked as “2” shows installation of diode (arrow points to wide pin).
If you do not install diode, SECU-3T ECU will be accessible only via Bluetooth.
By default, name of bluetooth device is “linvor“, password is “1234”
Note that it is obligatory to cut PCB jumper after installation of Bluetooth (as shown above)!