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17th December 2019, 19:05 | #271 | |
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17th December 2019, 23:22 | #272 |
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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.
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If at first you don't succeed, hide the evidence Last edited by Devilish; 17th December 2019 at 23:24.. |
18th December 2019, 04:26 | #273 |
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Thermotop Z C schematics
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.. Last edited by Pete73; 19th December 2019 at 06:58.. Reason: tried to get the pic to show :) |
18th December 2019, 04:46 | #274 | |
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18th December 2019, 09:12 | #275 | ||
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18th December 2019, 19:07 | #276 |
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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.
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18th December 2019, 19:46 | #277 |
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18th December 2019, 20:20 | #278 |
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18th December 2019, 20:33 | #279 |
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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.
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19th December 2019, 06:55 | #280 |
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