bluetooth LM-BT-16-4

[TONZ]

how to connect 3 trailers using the bluetooth I have LM-BT-S connected in the truck and 1 LM-BT-16-4 in each trailer but can not get them to work together can someone help please

[BEIER-Electronic Andy]

Hello TONZ,

first, connect the truck to the first LM-BT-16-4. Do not switch on the power to the other LM-BT-16-4 yet.

Once the connection is established (the LED on the LM-BT-S is solid, and the red LED on the LM-BT-16-4 is also solid), then apply power to the second LM-BT-16-4 and wait until the connection is established.

Finally, apply power to the third LM-BT-16-4.

[TONZ]

Thankyou I have tried what you suggested but I can not establish a connection on the other 2 trailers,do the LM-BT-16-4 have to be programed via the LM teacher or the SFR-1
Thankyou for your help

[BEIER-Electronic Andy]

Because of the BT connection, the module doesn't need to be programmed separately, it should work as it is.

Connect the data cable to the second and third LM-BT-16-4 and click "Reset MAC addresses" in the "Data cable" menu in LM-Teacher.

[TONZ]

Thankyou for your help Andy but I've done everything you recommended and still not working the red lights on the 2nd and 3rd units is flashing red
I must have something wrong but can not figure out what

[BEIER-Electronic Andy]

Okay, can you try to narrow down the problem somehow?

What happens if you try to connect only the 2nd LM-BT-16-4 to the truck? Does that work?

What happens if you try to connect only the 3rd LM-BT-16-4 to the truck? Does that work?

Don't connect any other LM-BT-S to the LM-BT-16-4 at this time!

[TONZ]

when I connect the 2nd LM-BT-16-4 only it works
when I connect the 3rd LM-BT-16-4 only it works
I've only got 1 LM-BT-S connected in the truck

[BEIER-Electronic Andy]

That looks good.

Now swap the LM-BT-S in the truck with the other two, one at a time, to check if all LM-BT-S are working.

[TONZ]

Thankyou Andy I will do it on Saturday bit busy at work I will let you know how It works

[TONZ]

Hello Andy I have changed all LM-BT-S one at at a time 1 LM-BT-16-4 the green light does not come on so I changed it to a new one and It works
but still only 1 trailer works at a time,If I turn on 1st trailer and wait for connection then turn on 2nd trailer It does not connect ,do I need to have 3 LM-BT-S connected in the truck and if so hoe would I do it.
This has realy got me confused
Once thankyou for your help Andy