FBH The end of the SAGA ?

[trebor]

Originally Posted by Hartr99

Question
Some one in an earlier post said you can switch the bmw one from kbus mode to normal.
My question is does it have to be in a bmw to use the bmw software or can you use the 6pin to obd2 adaptor the use the bmw lead and software?
Many thanks.
Ross.


Sent from my iPhone using Tapatalk

You wont start a BMW FBH with a BMW PCB off the car, it needs to talk to the cars electrics to work, and it wont work on a Rover 75 unless it has a Rover PCB in it.

[Devilish]

Just to add, a BMW PCB cannot be re programmed from digital to analogue, so it can be started by 12v, without pin 2 being in constant communication with the vehicle BUS.
The PCB is woken up by start command, some PCB's require a repeat run command to pin 2every 15 seconds, otherwise it's goodnight.

I reckon Range Rover, BMW, Audi, VW etc, do not want us riff raff using their FBH's.

[Pete73]

Hi all!

Been reading all pages of this interesting topic, and have to say, this is brilliant!

FrenchMike, this is a great value of information!

So back to topic..

I have also this BMW (from a E53) thermotop Z auxiliary heater, and the problem in my case is the short circuit on glow pin by INPA software.
I measured the glow pin, and its fine, within .2-.3ohms, so this leans to a problem with the ECU.

I found a pic from internet that states BTS141 pin S (Source) being directly feeding the glow circuit, and I am in desperate need of schematics.

As looking the data sheet of BTS141, I understand that the short circuit is measured within the SIPMOS mosfet?

I checked all resistors on top side, and all are good, even the wrigleys chewing gum had started to destroy the varnish, I think I removed it just in time..

Attached a pic of the board



(seems that the pic won't show, so here is the link: https://imgur.com/a/c5SnDIP

Any help would be very appreciated

BR Pete

P.S. I tried to measure the resistance from the ECU X3 connector, and I get 25.1-25.3Kohms, can anyone measure theirs and compare the values? As then would know what a working one should read out..

[macafee2]

Originally Posted by Devilish

Just to add, a BMW PCB cannot be re programmed from digital to analogue, so it can be started by 12v, without pin 2 being in constant communication with the vehicle BUS.
The PCB is woken up by start command, some PCB's require a repeat run command to pin 2every 15 seconds, otherwise it's goodnight.

I reckon Range Rover, BMW, Audi, VW etc, do not want us riff raff using their FBH's.

could a chip be replaced and programmed to work?

macafee2

[Arctic]

Hi Pete
You need to use BBCode to post the photo as here below
1

[Devilish]

Hi Pete. PM me your email address, I will send schematic, and help with more thorough important component testing.

Hi Ian. Yes it is possible, and I am going to report you to BMW.

[macafee2]

Originally Posted by Devilish

Hi Pete. PM me your email address, I will send schematic, and help with more thorough important component testing.

Hi Ian. Yes it is possible, and I am going to report you to BMW.

And what will you be telling them? Someone asked a question?


macafee2

[Jules]

🤣🤣😃🎄☃️🎄☃️🎄

[Devilish]

Originally Posted by macafee2

And what will you be telling them? Someone asked a question?

Going to tell them you are asking about re programming BMW Thermo Top PCB's, there might be a reward, then you will have to go to your hideout.

[Pete73]

Originally Posted by Arctic

Hi Pete
You need to use BBCode to post the photo as here below

Hi Arctic!

Tried that, but no go.. Is there some delay for it to work?
Even refreshing the page, its not showing up..

I will try again..